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Nasal CavityNose NeoplasmsNasal MucosaNasal SeptumRhinometry, AcousticNose DiseasesTurbinatesParanasal Sinus NeoplasmsParanasal SinusesNoseNasal PolypsNasal ObstructionOlfactory MucosaNasal Lavage FluidAdministration, IntranasalNasal DecongestantsNasal SpraysEthmoid SinusEpistaxisEsthesioneuroblastoma, OlfactoryMaxillary SinusGranuloma, PyogenicMaxillary Sinus NeoplasmsRhinitisRhinitis, AtrophicEthmoid BoneParanasal Sinus DiseasesOlfactory NerveNasal BoneRhinomanometryEndoscopySinusitisModels, AnatomicPeritoneal CavityPasteurella InfectionsMouthRhinoscleromaPapilloma, InvertedNitrosaminesVomeronasal OrganTomography, X-Ray ComputedHistology, ComparativeAngiomyomaBordetella bronchisepticaRhinitis, Allergic, PerennialAngiofibromaSmellTampons, SurgicalBordetella InfectionsRespiratory SystemNose Deformities, AcquiredNasal CartilagesAnatomy, ComparativeOlfactory BulbDecalcification TechniqueOtorhinolaryngologic Surgical ProceduresNasopharynxHemangiopericytomaOlfactory Marker ProteinAirway ResistanceFrontal SinusPalatal Expansion TechniqueNasopharyngeal NeoplasmsHydrocarbons, IodinatedAir MovementsMyiasisOlfactory Nerve InjuriesPasteurella multocidaDental Cavity PreparationRespiratory Tract NeoplasmsCoronavirus, RatMethylmethacrylateDacryocystorhinostomyRats, Inbred F344OdorsOlfactory Receptor NeuronsPleural CavityPasteurellaAdministration, InhalationNasal Surgical ProceduresOlfactory PathwaysOrbitMaxillary ArteryNasal LavageRodent DiseasesPulmonary VentilationWoodNasal Provocation TestsPapillomaHamartomaLymphoma, Extranodal NK-T-CellInhalationEpitheliumLacrimal Duct ObstructionPalatal NeoplasmsTracheal NeoplasmsMaxillary NeoplasmsSkullCarcinogensSkull BaseIrritantsSwine DiseasesMarsupialiaAdenoma, PleomorphicRhinoplastyTrigeminal NerveFormaldehydeImmunohistochemistryFatal OutcomeExocrine GlandsLithiasisTrachea
Nasal Cavity: The proximal portion of the respiratory passages on either side of the NASAL SEPTUM. Nasal cavities, extending from the nares to the NASOPHARYNX, are lined with ciliated NASAL MUCOSA.Nose Neoplasms: Tumors or cancer of the NOSE.Nasal Mucosa: The mucous lining of the NASAL CAVITY, including lining of the nostril (vestibule) and the OLFACTORY MUCOSA. Nasal mucosa consists of ciliated cells, GOBLET CELLS, brush cells, small granule cells, basal cells (STEM CELLS) and glands containing both mucous and serous cells.Nasal Septum: The partition separating the two NASAL CAVITIES in the midplane. It is formed by the SEPTAL NASAL CARTILAGE, parts of skull bones (ETHMOID BONE; VOMER), and membranous parts.Rhinometry, Acoustic: Diagnostic measurement of the nose and its cavity through acoustic reflections. Used to measure nasal anatomical landmarks, nasal septal deviation, and nasal airway changes in response to allergen provocation tests (NASAL PROVOCATION TESTS).Nose Diseases: Disorders of the nose, general or unspecified.Turbinates: The scroll-like bony plates with curved margins on the lateral wall of the NASAL CAVITY. Turbinates, also called nasal concha, increase the surface area of nasal cavity thus providing a mechanism for rapid warming and humidification of air as it passes to the lung.Paranasal Sinus Neoplasms: Tumors or cancer of the PARANASAL SINUSES.Paranasal Sinuses: Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.Nose: A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.Nasal Polyps: Focal accumulations of EDEMA fluid in the NASAL MUCOSA accompanied by HYPERPLASIA of the associated submucosal connective tissue. Polyps may be NEOPLASMS, foci of INFLAMMATION, degenerative lesions, or malformations.Nasal Obstruction: Any hindrance to the passage of air into and out of the nose. The obstruction may be unilateral or bilateral, and may involve any part of the NASAL CAVITY.Olfactory Mucosa: That portion of the nasal mucosa containing the sensory nerve endings for SMELL, located at the dome of each NASAL CAVITY. The yellow-brownish olfactory epithelium consists of OLFACTORY RECEPTOR NEURONS; brush cells; STEM CELLS; and the associated olfactory glands.Nasal Lavage Fluid: Fluid obtained by THERAPEUTIC IRRIGATION or washout of the nasal cavity and NASAL MUCOSA. The resulting fluid is used in cytologic and immunologic assays of the nasal mucosa such as with the NASAL PROVOCATION TEST in the diagnosis of nasal hypersensitivity.Administration, Intranasal: Delivery of medications through the nasal mucosa.Nasal Decongestants: Drugs designed to treat inflammation of the nasal passages, generally the result of an infection (more often than not the common cold) or an allergy related condition, e.g., hay fever. The inflammation involves swelling of the mucous membrane that lines the nasal passages and results in inordinate mucus production. The primary class of nasal decongestants are vasoconstrictor agents. (From PharmAssist, The Family Guide to Health and Medicine, 1993)Nasal Sprays: Pharmacologic agents delivered into the nostrils in the form of a mist or spray.Ethmoid Sinus: The numerous (6-12) small thin-walled spaces or air cells in the ETHMOID BONE located between the eyes. These air cells form an ethmoidal labyrinth.Epistaxis: Bleeding from the nose.Esthesioneuroblastoma, Olfactory: A malignant olfactory neuroblastoma arising from the olfactory epithelium of the superior nasal cavity and cribriform plate. It is uncommon (3% of nasal tumors) and rarely is associated with the production of excess hormones (e.g., SIADH, Cushing Syndrome). It has a high propensity for multiple local recurrences and bony metastases. (From Holland et al., Cancer Medicine, 3rd ed, p1245; J Laryngol Otol 1998 Jul;112(7):628-33)Maxillary Sinus: The air space located in the body of the MAXILLARY BONE near each cheek. Each maxillary sinus communicates with the middle passage (meatus) of the NASAL CAVITY on the same side.Granuloma, Pyogenic: A disorder of the skin, the oral mucosa, and the gingiva, that usually presents as a solitary polypoid capillary hemangioma often resulting from trauma. It is manifested as an inflammatory response with similar characteristics to those of a granuloma.Maxillary Sinus Neoplasms: Tumors or cancer of the MAXILLARY SINUS. They represent the majority of paranasal neoplasms.Rhinitis: Inflammation of the NASAL MUCOSA, the mucous membrane lining the NASAL CAVITIES.Rhinitis, Atrophic: A chronic inflammation in which the NASAL MUCOSA gradually changes from a functional to a non-functional lining without mucociliary clearance. It is often accompanied by degradation of the bony TURBINATES, and the foul-smelling mucus which forms a greenish crust (ozena).Ethmoid Bone: A light and spongy (pneumatized) bone that lies between the orbital part of FRONTAL BONE and the anterior of SPHENOID BONE. Ethmoid bone separates the ORBIT from the ETHMOID SINUS. It consists of a horizontal plate, a perpendicular plate, and two lateral labyrinths.Paranasal Sinus Diseases: Diseases affecting or involving the PARANASAL SINUSES and generally manifesting as inflammation, abscesses, cysts, or tumors.Olfactory Nerve: The 1st cranial nerve. The olfactory nerve conveys the sense of smell. It is formed by the axons of OLFACTORY RECEPTOR NEURONS which project from the olfactory epithelium (in the nasal epithelium) to the OLFACTORY BULB.Nasal Bone: Either one of the two small elongated rectangular bones that together form the bridge of the nose.Rhinomanometry: Technique for measuring air pressure and the rate of airflow in the nasal cavity during respiration.Endoscopy: Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.Sinusitis: Inflammation of the NASAL MUCOSA in one or more of the PARANASAL SINUSES.Models, Anatomic: Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.Peritoneal Cavity: The space enclosed by the peritoneum. It is divided into two portions, the greater sac and the lesser sac or omental bursa, which lies behind the STOMACH. The two sacs are connected by the foramen of Winslow, or epiploic foramen.Pasteurella Infections: Infections with bacteria of the genus PASTEURELLA.Mouth: The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.Rhinoscleroma: A granulomatous disease caused by KLEBSIELLA RHINOSCLEROMATIS infection. Despite its name, this disease is not limited to the nose and NASOPHARYNX but may affect any part of the RESPIRATORY TRACT, sometimes with extension to the lip and the skin.Papilloma, Inverted: A mucosal tumor of the urinary bladder or nasal cavity in which proliferating epithelium is invaginated beneath the surface and is more smoothly rounded than in other papillomas. (Stedman, 25th ed)Nitrosamines: A class of compounds that contain a -NH2 and a -NO radical. Many members of this group have carcinogenic and mutagenic properties.Vomeronasal Organ: An accessory chemoreceptor organ that is separated from the main OLFACTORY MUCOSA. It is situated at the base of nasal septum close to the VOMER and NASAL BONES. It forwards chemical signals (such as PHEROMONES) to the CENTRAL NERVOUS SYSTEM, thus influencing reproductive and social behavior. In humans, most of its structures except the vomeronasal duct undergo regression after birth.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Histology, Comparative: The study of the similarities and differences in the structures of homologous tissues across various species.Angiomyoma: A benign tumor consisting of vascular and smooth muscle elements.Bordetella bronchiseptica: A species of BORDETELLA that is parasitic and pathogenic. It is found in the respiratory tract of domestic and wild mammalian animals and can be transmitted from animals to man. It is a common cause of bronchopneumonia in lower animals.Rhinitis, Allergic, Perennial: Inflammation of the mucous membrane of the nose similar to that found in hay fever except that symptoms persist throughout the year. The causes are usually air-borne allergens, particularly dusts, feathers, molds, animal fur, etc.Angiofibroma: A benign neoplasm of fibrous tissue in which there are numerous small and large, frequently dilated, vascular channels. (Stedman, 25th ed)Smell: The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.Tampons, Surgical: Plugs or cylinders made of cotton, sponge, or other absorbent material. They are used in surgery to absorb fluids such as blood or drainage.Bordetella Infections: Infections with bacteria of the genus BORDETELLA.Respiratory System: The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about.Nose Deformities, Acquired: Abnormalities of the nose acquired after birth from injury or disease.Nasal Cartilages: Hyaline cartilages in the nose. There are five major nasal cartilages including two lateral, two alar, and one septal.Anatomy, Comparative: The comparative study of animal structure with regard to homologous organs or parts. (Stedman, 25th ed)Olfactory Bulb: Ovoid body resting on the CRIBRIFORM PLATE of the ethmoid bone where the OLFACTORY NERVE terminates. The olfactory bulb contains several types of nerve cells including the mitral cells, on whose DENDRITES the olfactory nerve synapses, forming the olfactory glomeruli. The accessory olfactory bulb, which receives the projection from the VOMERONASAL ORGAN via the vomeronasal nerve, is also included here.Decalcification Technique: Removal of minerals from bones during bone examination.Otorhinolaryngologic Surgical Procedures: Surgery performed on the ear and its parts, the nose and nasal cavity, or the throat, including surgery of the adenoids, tonsils, pharynx, and trachea.Nasopharynx: The top portion of the pharynx situated posterior to the nose and superior to the SOFT PALATE. The nasopharynx is the posterior extension of the nasal cavities and has a respiratory function.Hemangiopericytoma: A tumor composed of spindle cells with a rich vascular network, which apparently arises from pericytes, cells of smooth muscle origin that lie around small vessels. Benign and malignant hemangiopericytomas exist, and the rarity of these lesions has led to considerable confusion in distinguishing between benign and malignant variants. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1364)Olfactory Marker Protein: A ubiquitous, cytoplasmic protein found in mature OLFACTORY RECEPTOR NEURONS of all VERTEBRATES. It is a modulator of the olfactory SIGNAL TRANSDUCTION PATHWAY.Airway Resistance: Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.Frontal Sinus: One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.Palatal Expansion Technique: An orthodontic method used for correcting narrow or collapsed maxillary arches and functional cross-bite. (From Jablonski's Dictionary of Dentistry),Nasopharyngeal Neoplasms: Tumors or cancer of the NASOPHARYNX.Hydrocarbons, IodinatedAir Movements: The motion of air currents.Myiasis: The invasion of living tissues of man and other mammals by dipterous larvae.Olfactory Nerve Injuries: Traumatic injuries to the OLFACTORY NERVE. It may result in various olfactory dysfunction including a complete loss of smell.Pasteurella multocida: A species of gram-negative, facultatively anaerobic, rod-shaped bacteria normally found in the flora of the mouth and respiratory tract of animals and birds. It causes shipping fever (see PASTEURELLOSIS, PNEUMONIC); HEMORRHAGIC BACTEREMIA; and intestinal disease in animals. In humans, disease usually arises from a wound infection following a bite or scratch from domesticated animals.Dental Cavity Preparation: An operation in which carious material is removed from teeth and biomechanically correct forms are established in the teeth to receive and retain restorations. A constant requirement is provision for prevention of failure of the restoration through recurrence of decay or inadequate resistance to applied stresses. (Boucher's Clinical Dental Terminology, 4th ed, p239-40)Respiratory Tract NeoplasmsCoronavirus, Rat: A species of CORONAVIRUS causing pneumonia in newborn rats but a clinically inapparent infection in adults. It is separate but antigenically related to MURINE HEPATITIS VIRUS.Methylmethacrylate: The methyl ester of methacrylic acid. It polymerizes easily to form POLYMETHYL METHACRYLATE. It is used as a bone cement.Dacryocystorhinostomy: Surgical fistulization of the LACRIMAL SAC for external drainage of an obstructed nasolacrimal duct.Rats, Inbred F344Odors: The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)Olfactory Receptor Neurons: Neurons in the OLFACTORY EPITHELIUM with proteins (RECEPTORS, ODORANT) that bind, and thus detect, odorants. These neurons send their DENDRITES to the surface of the epithelium with the odorant receptors residing in the apical non-motile cilia. Their unmyelinated AXONS synapse in the OLFACTORY BULB of the BRAIN.Pleural Cavity: Paired but separate cavity within the THORACIC CAVITY. It consists of the space between the parietal and visceral PLEURA and normally contains a capillary layer of serous fluid that lubricates the pleural surfaces.Pasteurella: The oldest recognized genus of the family PASTEURELLACEAE. It consists of several species. Its organisms occur most frequently as coccobacillus or rod-shaped and are gram-negative, nonmotile, facultative anaerobes. Species of this genus are found in both animals and humans.Administration, Inhalation: The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.Nasal Surgical Procedures: Surgical operations on the nose and nasal cavity.Olfactory Pathways: Set of nerve fibers conducting impulses from olfactory receptors to the cerebral cortex. It includes the OLFACTORY NERVE; OLFACTORY BULB; OLFACTORY TRACT; OLFACTORY TUBERCLE; ANTERIOR PERFORATED SUBSTANCE; and OLFACTORY CORTEX.Orbit: Bony cavity that holds the eyeball and its associated tissues and appendages.Maxillary Artery: A branch of the external carotid artery which distributes to the deep structures of the face (internal maxillary) and to the side of the face and nose (external maxillary).Nasal Lavage: Irrigation of the nose with saline or irrigation solutions for diagnostic or therapeutic purposes. It is used to remove irritants, allergens, or microorganisms from the nose.Rodent Diseases: Diseases of rodents of the order RODENTIA. This term includes diseases of Sciuridae (squirrels), Geomyidae (gophers), Heteromyidae (pouched mice), Castoridae (beavers), Cricetidae (rats and mice), Muridae (Old World rats and mice), Erethizontidae (porcupines), and Caviidae (guinea pigs).Pulmonary Ventilation: The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.Wood: A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.Nasal Provocation Tests: Application of allergens to the nasal mucosa. Interpretation includes observation of nasal symptoms, rhinoscopy, and rhinomanometry. Nasal provocation tests are used in the diagnosis of nasal hypersensitivity, including RHINITIS, ALLERGIC, SEASONAL.Papilloma: A circumscribed benign epithelial tumor projecting from the surrounding surface; more precisely, a benign epithelial neoplasm consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells. (Stedman, 25th ed)Hamartoma: A focal malformation resembling a neoplasm, composed of an overgrowth of mature cells and tissues that normally occur in the affected area.Lymphoma, Extranodal NK-T-Cell: An extranodal neoplasm, usually possessing an NK-cell phenotype and associated with EPSTEIN-BARR VIRUS. These lymphomas exhibit a broad morphologic spectrum, frequent necrosis, angioinvasion, and most commonly present in the midfacial region, but also in other extranodal sites.Inhalation: The act of BREATHING in.Epithelium: One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.Lacrimal Duct Obstruction: Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)Palatal Neoplasms: Tumors or cancer of the PALATE, including those of the hard palate, soft palate and UVULA.Tracheal NeoplasmsMaxillary Neoplasms: Cancer or tumors of the MAXILLA or upper jaw.Skull: The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN.Carcinogens: Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.Skull Base: The inferior region of the skull consisting of an internal (cerebral), and an external (basilar) surface.Irritants: Drugs that act locally on cutaneous or mucosal surfaces to produce inflammation; those that cause redness due to hyperemia are rubefacients; those that raise blisters are vesicants and those that penetrate sebaceous glands and cause abscesses are pustulants; tear gases and mustard gases are also irritants.Swine Diseases: Diseases of domestic swine and of the wild boar of the genus Sus.Marsupialia: An infraclass of MAMMALS, also called Metatheria, where the young are born at an early stage of development and continue to develop in a pouch (marsupium). In contrast to Eutheria (placentals), marsupials have an incomplete PLACENTA.Adenoma, Pleomorphic: A benign, slow-growing tumor, most commonly of the salivary gland, occurring as a small, painless, firm nodule, usually of the parotid gland, but also found in any major or accessory salivary gland anywhere in the oral cavity. It is most often seen in women in the fifth decade. Histologically, the tumor presents a variety of cells: cuboidal, columnar, and squamous cells, showing all forms of epithelial growth. (Dorland, 27th ed)Rhinoplasty: A plastic surgical operation on the nose, either reconstructive, restorative, or cosmetic. (Dorland, 28th ed)Trigeminal Nerve: The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the TRIGEMINAL GANGLION and project to the TRIGEMINAL NUCLEUS of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication.Formaldehyde: A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)Immunohistochemistry: Histochemical localization of immunoreactive substances using labeled antibodies as reagents.Fatal Outcome: Death resulting from the presence of a disease in an individual, as shown by a single case report or a limited number of patients. This should be differentiated from DEATH, the physiological cessation of life and from MORTALITY, an epidemiological or statistical concept.Exocrine Glands: Glands of external secretion that release its secretions to the body's cavities, organs, or surface, through a duct.Lithiasis: A condition characterized by the formation of CALCULI and concretions in the hollow organs or ducts of the body. They occur most often in the gallbladder, kidney, and lower urinary tract.Trachea: The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi.

The posterior nasal nerve plays an important role on cardiopulmonary reflexes to nasal application of capsaicin, distilled water and l-menthol in anesthetized dogs. (1/983)

The sensory innervation of the cardiopulmonary reflexes to nasal application of capsaicin (CAPS), distilled water (DW) and l-menthol (LM) was studied in anesthetized dogs breathing through tracheostomy. A marked cardiopulmonary reflex was observed by CAPS and DW into the nasal cavity, while a prolongation of expiration was induced by LM. All these reflexes were significantly decreased by bilateral section of the posterior nasal nerve (PNN) and completely abolished by topical nasal anesthesia with lidocaine. Responses of the whole nerve activity of the PNN to these substances corresponded to the magnitude of the reflexes. These results indicate that PNN afferents play an important role on the reflex elicitation of the noxious, water and cold stimuli from the nasal cavity.  (+info)

Nasal nitric oxide concentration in paranasal sinus inflammatory diseases. (2/983)

In normal upper airways, nitric oxide is generated by the paranasal sinus epithelium and then diffuses into the nasal cavities. This study examined whether or not nasal NO concentration is affected by paranasal sinus inflammatory diseases. The influence of obstruction (nasal polyposis) and/or inflammation (allergy or chronic sinusitis) of the paranasal sinuses on nasal NO concentration was evaluated in nasal allergic (n=7 patients) or nonallergic (n=20) polyposis, nonallergic chronic sinusitis (n=10) and Kartagener's syndrome (n=6) and compared with control subjects (n=42). A score of alteration of the paranasal sinus (number of altered and occluded sinuses) was determined by a computed tomography scan. The nasal NO concentration in nasal nonallergic polyposis (150+/-20 parts per billion (ppb)) was significantly decreased compared with both controls (223+/-6 ppb, p=0.01) and polyposis with allergy (272+/-28 ppb, p<0.0001). In each group, the nasal NO concentration was inversely correlated with the extent of tomodensitometric alteration of the paranasal sinuses. In Kartagener's syndrome, the nasal NO concentration (14+/-2 ppb) was drastically decreased compared with all other groups, despite the presence of open paranasal sinuses. Thus, the nasal NO concentration in patients with nasal polyposis appeared to be dependent on both the allergic status and the degree of obstruction of the paranasal sinuses.  (+info)

Salivary contribution to exhaled nitric oxide. (3/983)

Dietary and metabolic nitrate is distributed from the blood to the saliva by active uptake in the salivary glands, and is reduced to nitrite in the oral cavity by the action of certain bacteria. Since it has been reported that nitric oxide may be formed nonenzymatically from nitrite this study aimed to determine whether salivary nitrite could influence measurements of exhaled NO. Ten healthy subjects fasted overnight and ingested 400 mg potassium nitrate, equivalent to approximately 200 g spinach. Exhaled NO and nasal NO were regularly measured with a chemiluminescence technique up to 3 h after the ingestion. Measurements of exhaled NO were performed with a single-breath procedure, standardized to a 20-s exhalation, at a flow of 0.15 L x s(-1), and oral pressure of 8-10 cmH2O. Values of NO were registered as NO release rate (pmol x s(-1)) during the plateau of exhalation. Exhaled NO increased steadily over time after nitrate load and a maximum was seen at 120 min (77.0+/-15.2 versus 31.2+/-3.0 pmol x s(-1), p<0.01), whereas no increase was detected in nasal NO levels. Salivary nitrite concentrations increased in parallel; at 120 min there was a four-fold increase compared with baseline (1.56+/-0.44 versus 0.37+/-0.09 mM, p<0.05). The nitrite-reducing conditions in the oral cavity were also manipulated by the use of different mouthwash procedures. The antibacterial agent chlorhexidine acetate (0.2%) decreased NO release by almost 50% (p<0.01) 90 min after nitrate loading and reduced the preload control levels by close to 30% (p<0.05). Sodium bicarbonate (10%) also reduced exhaled NO levels, but to a somewhat lesser extent than chlorhexidine acetate. In conclusion, salivary nitric oxide formation contributes to nitric oxide in exhaled air and a large intake of nitrate-rich foods before the investigation might be misinterpreted as an elevated inflammatory activity in the airways. This potential source of error and the means for avoiding it should be considered in the development of a future standardized method for measurements of exhaled nitric oxide.  (+info)

Protection against influenza virus infection of mice fed Bifidobacterium breve YIT4064. (4/983)

Mice fed Bifidobacterium breve YIT4064 and immunized orally with influenza virus were more strongly protected against influenza virus infection of the lower respiratory tract than ones immunized with influenza virus only. The number of mice with enhanced anti-influenza virus immunoglobulin G (IgG) in serum upon oral administration of B. breve YIT4064 and oral immunization with influenza virus was significantly greater than that upon oral immunization with influenza virus only. These findings demonstrated that the oral administration of B. breve YIT4064 increased anti-influenza virus IgG antibodies in serum and protected against influenza virus infection. The oral administration of B. breve YIT4064 may enhance antigen-specific IgG against various pathogenic antigens taken orally and induce protection against various virus infections.  (+info)

Capsaicin-sensitive C-fiber-mediated protective responses in ozone inhalation in rats. (5/983)

To assess the role of lung sensory C fibers during and after inhalation of 1 part/million ozone for 8 h, we compared breathing pattern responses and epithelial injury-inflammation-repair in rats depleted of C fibers by systemic administration of capsaicin as neonates and in vehicle-treated control animals. Capsaicin-treated rats did not develop ozone-induced rapid, shallow breathing. Capsaicin-treated rats showed more severe necrosis in the nasal cavity and greater inflammation throughout the respiratory tract than did control rats exposed to ozone. Incorporation of 5-bromo-2'-deoxyuridine (a marker of DNA synthesis associated with proliferation) into terminal bronchiolar epithelial cells was not significantly affected by capsaicin treatment in rats exposed to ozone. However, when normalized to the degree of epithelial necrosis present in each rat studied, there was less 5-bromo-2'-deoxyuridine labeling in the terminal bronchioles of capsaicin-treated rats. These observations suggest that the ozone-induced release of neuropeptides does not measurably contribute to airway inflammation but may play a role in modulating basal and reparative airway epithelial cell proliferation.  (+info)

LMR spectroscopy: a new sensitive method for on-line recording of nitric oxide in breath. (6/983)

Laser magnetic resonance spectroscopy (LMRS) is a sensitive and isotope-selective technique for determining low concentrations of gaseous free radicals with high time resolution. We used this technique to analyze the nitric oxide (NO) concentration profile while simultaneously measuring the flow and expired volume during several single breathing cycles. Eight healthy, nonallergic volunteers were investigated. An initial NO peak was found in all breathing cycles before the NO concentration dropped to a relatively stable plateau in the late phase of expiration. The nasal NO peak was significantly higher than the oral NO peak. The nasal NO plateau was always higher than the oral NO plateau. The height of the initial nasal and oral NO peak rose with increasing duration of breath hold, whereas the late expiratory NO plateau changed only little for either the nasal or the oral breathing cycles. Our findings demonstrate, in line with other reports using other techniques, that the nose is the primary source for NO within the airways.  (+info)

Anatomical structure and surface epithelial distribution in the nasal cavity of the common cotton-eared marmoset (Callithrix jacchus). (7/983)

To validate use of the common cotton-eared marmoset (Callithrix jacchus) in inhalation toxicity studies, its nasal morphology was examined. The nasal turbinates each consisted of one maxilloturbinate and one ethmoturbinate: these were more planar in structure than the comparable structures of rodents or dogs. The nasal cavity epithelia comprised squamous epithelium (SE), nasal transitional epithelium (NTE), respiratory epithelium (RE) and olfactory epithelium (OE), listed in order of occurrence from anterior to posterior positions. NTE was distributed as a narrow band lying between SE and RE. OE was limited to the dorsal part of the cavity, which was structurally similar to that of the macaque or man. Overall, this study revealed structural the similarity of the whole nasal cavity in the marmoset to that of macaques or humans. Prediction of nasal cavity changes in man based on extrapolation from experimentally induced changes in the common marmoset therefore seems likely to be feasible, making it a useful animal model for inhalation studies.  (+info)

Evidence for nasal carriage of methicillin-resistant staphylococci colonizing intravascular devices. (8/983)

Nasal surveillance cultures were performed for 54 patients exhibiting >/=10(3) CFU of methicillin-resistant coagulase-negative staphylococci per ml in central venous catheter (CVC) rinse cultures over a 6-month period. Forty-two of the nasal cultures yielded growth of methicillin-resistant coagulase-negative staphylococci, and 33 of the 42 cultures contained organisms that belonged to the same species as the CVC isolates. Of the 33 same-species isolates, 20 appeared to be identical strains by pulsed-field gel electrophoresis analysis. These data suggest that measures should be taken to reduce cross-contamination between the respiratory tract and intravascular devices. However, the potential interest in detecting methicillin-resistant coagulase-negative staphylococcus carriage in high-risk patients is hampered by the lack of sensitivity of nasal surveillance cultures.  (+info)

Nasal cavity - Simple English Wikipedia, the free encyclopediaNasal cavity - Simple English Wikipedia, the free encyclopedia
The nose cavity is divided into a right and left passageway. The tissue that covers the wall of your nasal cavity contains many blood vessels. Heat from the blood in the vessels helps warm the air as you breathe. Moisture (small amount of water) is added to the air you breath by special cells in the walls of the nasal cavity. The air is warmed and moistened before it reaches your lungs. Cilia (small hairs) and mucus along the inside wall of the nasal cavity trap and remove dust and germs from the air as it flows through the nasal cavity. The cilia move the mucus down the nasal cavity to the pharynx, where it can be swallowed. ...
NIOSHTIC-2 Publications Search - 20044482 - Airflow and deposition of nano-particles in a human nasal cavity.NIOSHTIC-2 Publications Search - 20044482 - Airflow and deposition of nano-particles in a human nasal cavity.
A 3D computational model was developed to study the flow and the transport and deposition of nano-size particle in a realistic human nasal passage. The nasal cavity was constructed from a series of MRI images of coronal sections of a nose of a live human subject. For several breathing rates associated with low or moderate activities, the steady state flows in the nasal passage were simulated numer
Successful treatment of a sinonasal cryptococcal granuloma in a horse by Michael M. Fry, V.C. Cruz et al."Successful treatment of a sinonasal cryptococcal granuloma in a horse" by Michael M. Fry, V.C. Cruz et al.
CASE DESCRIPTION: A 12-year-old 500-kg (1,100-lb) American Quarter Horse mare was evaluated because of chronic mucopurulent, bloody discharge from the left nostril, inspiratory dyspnea, and respiratory noise. CLINICAL FINDINGS: The horse had severe inspiratory dyspnea and stertorous respiration with no airflow from the left nostril. A temporary tracheostomy was performed. Endoscopy revealed a tan mass protruding from the left middle nasal meatus into the left common nasal meatus; it extended caudally into the nasopharynx and around the caudal edge of the nasal septum into the right nasal cavity. Radiographically, a soft tissue opacity was evident in most of the left nasal cavity and left paranasal sinuses. Cytologic examination of mass tissue revealed evidence of pyogranulomatous rhinitis; thickly encapsulated, budding yeast typical of Cryptococcus neoformans were detected. TREATMENT AND OUTCOME: While the horse was sedated and in a standing position, the fungal granuloma was removed from the paranasal
Patent US20060174889 - Nasal gas delivery system and method for use thereof - Google PatentsPatent US20060174889 - Nasal gas delivery system and method for use thereof - Google Patents
A gas administering method for administering gas to an airway of a patient having a nasal vestibule and for use with a gas administering apparatus comprises a primary gas source that is operable to provide gas and a nasal vestibular portion arranged so as to receive the gas from the primary gas source. Further, the nasal vestibular portion is capable of releasing the primary gas into the nasal vestibule. The method comprises inserting the nasal vestibular portion into the nasal vestibule, forming a seal between the nasal vestibular portion and an inner surface of the nasal vestibule, administering an amount of a gas from the primary gas source at a constant flow rate into the nasal vestibule via the nasal vestibular portion, and administering an anesthetic to the patient. The anesthetic induces depression of a portion of the nervous system of the patient. Furthermore, the seal promotes airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion
Airflow simulation inside a model of the human nasal cavity in a virtual reality based rhin... - RWTH AACHEN UNIVERSITY IT...Airflow simulation inside a model of the human nasal cavity in a virtual reality based rhin... - RWTH AACHEN UNIVERSITY IT...
Amsterdam [u.a.] / Elsevier (2001) [Buchbeitrag, Beitrag zu einem Tagungsband]. CARS 2001 : computer assisted radiology and surgery ; proceedings of the 15th international congress and exhibition, Berlin, June 27-30, 2001 / editors, Heinz U. Lemke ...
Forschungszentrum Jülich - JSC - Announcements 2017 - Rhinodiagnost - HPC for Precision Diagnostics of Nasal CavitiesForschungszentrum Jülich - JSC - Announcements 2017 - Rhinodiagnost - HPC for Precision Diagnostics of Nasal Cavities
The Rhinodiagnost project prepares the implementation of a NOSE Service Center to deliver new extended possibilities of functional diagnostics to practicing physicians in rhinology and to advance personalized medicine. For a meaningful rhinological diagnosis, advanced rhinomanometry methods and computational fluid dynamics (CFD) are required to evaluate the effectiveness of patient-specific nasal functionalities.. Developments in the field of CFD and high-performance computing (HPC) allow us to individually predict the flow in a patients human nasal cavity by means of numerical simulations, thereby enabling us to identify anatomical locations of pathologies. Hence, results from CFD and rhinomanometry can be used to a priori determine optimal surgery strategies for the individual patient in order to increase the success rate of surgery and to adapt treatment therapies accordingly.. Two German medical device companies, namely Sutter Medizintechnik GmbH and Med Contact GmbH, are joining forces ...
Supportive Bones and Cartilages of the Nasal Cavity • GetBodySmartSupportive Bones and Cartilages of the Nasal Cavity • GetBodySmart
The nasal cavity is framed and supported by several bones and cartilages. The nasal septum divides the nasal cavity into two chambers.
Model of the Anatomy Nasal Cavity, Model of the Anatomy Nasal Cavity Ambala, Model of the Anatomy Nasal Cavity Manufacturers,...Model of the Anatomy Nasal Cavity, Model of the Anatomy Nasal Cavity Ambala, Model of the Anatomy Nasal Cavity Manufacturers,...
VIDYA TECHNOART makes Pharmaceuticals Promotional Sales & Custom Models, Doctor models, Patient education and training models. Giftings.
Treatments for recurrent nasal cavity cancer - Canadian Cancer SocietyTreatments for recurrent nasal cavity cancer - Canadian Cancer Society
Treatments for recurrent nasal cavity cancer include radiation therapy and surgery. Learn about treatments for recurrent nasal cavity cancer.
Treatments for stage 1 nasal cavity cancer - Canadian Cancer SocietyTreatments for stage 1 nasal cavity cancer - Canadian Cancer Society
Surgery and radiation therapy are treatments for stage I nasal cavity cancer. Learn about treatments for stage I nasal cavity cancer.
Middle nasal meatus (Meatus nasi medius) | KenhubMiddle nasal meatus (Meatus nasi medius) | Kenhub
Middle nasal meatus aka Meatus nasi medius in the latin terminology and part of bones, cartilages and mucosa with focus on the lateral wall. Learn more now!
17.1 Anatomy and Normal Microbiota of the Respiratory Tract - Allied Health Microbiology17.1 Anatomy and Normal Microbiota of the Respiratory Tract - Allied Health Microbiology
The respiratory system can be conceptually divided into upper and lower regions at the point of the epiglottis, the structure that seals off the lower respiratory system from the pharynx during swallowing (Figure 17.2). The upper respiratory system is in direct contact with the external environment. The nares (or nostrils) are the external openings of the nose that lead back into the nasal cavity, a large air-filled space behind the nares. These anatomical sites constitute the primary opening and first section of the respiratory tract, respectively. The nasal cavity is lined with hairs that trap large particles, like dust and pollen, and prevent their access to deeper tissues. The nasal cavity is also lined with a mucous membrane and Bowmans glands that produce mucus to help trap particles and microorganisms for removal. The nasal cavity is connected to several other air-filled spaces. The sinuses, a set of four, paired small cavities in the skull, communicate with the nasal cavity through a ...
Alveolar ducts - alveolar sacs - alveoli (300,000,000)Alveolar ducts - alveolar sacs - alveoli (300,000,000)
Respiratory System Lecture Outline Facts: Unicellular organisms - only organisms without resp. system - gasses exchange through membrane. Oxygen in atmosphere: 21% oxygen - anything below 15% humans cant survive Diagram of Resp. Syst.: Mouth\nose - nasal cavity - pharynx - larynx - trachea - bronchi - bronchioles - alveoli (gas exchanges here) Purpose of respiratory system a. supply cells with oxygen b. remove carbon dioxide from cells Upper Resp. Stem: (Nose, Pharynx, Larnyx) Air enters external nares (nostrils) into nasal cavities. Nasal Conchae bones: increase surface area by being folded into 3 ridges Conchae and entire lining of nose covered by mucus membrane - clean dust and debris from air. Three functions of nasal cavity: a. Clean out dirt and dust (mucus and nose hairs) b. Warm the air you breathe (blood vessels in nasal cavity raise air temp.) c. Moisten incoming air. Four pairs of sinuses - drain into nose  Lightens the skull and acts as a resonance chamber for sound. Nasal Cavity ...
Patent US20060111760 - Phototherapeutical method and system for the treatment of inflammatory and ... - Google PatentsPatent US20060111760 - Phototherapeutical method and system for the treatment of inflammatory and ... - Google Patents
A phototherapeutical apparatus is described, including a light source, generating high intensity visible light, in some embodiments in combination with ultraviolet light, an optical guidance system, and a patient interface. The patient interface can be insertable at least partially into a nasal cavity and is operable to apply the generated light to a tissue surface of the nasal cavity. Applying the apparatus includes providing the phototherapeutical apparatus, preparing for the application of the apparatus, inserting the patient interface into the nasal cavity, and applying the generated light by the patient interface to a tissue surface of the nasal cavity, wherein the tissue of the nasal cavity has an inflammatory or a hyperproliferative disease. The inflammatory diseases include rhinitis, sinusitis, and rhinosinusitis. A photodynamical therapy is also described, applying photosensitizing substances before the treatment with light. The phototherapeutical method is also effective for the prevention of
Brevet US6270512 - Internal nasal dilator - Google BrevetsBrevet US6270512 - Internal nasal dilator - Google Brevets
A dilator/insert internally support the lateral nasal walls and securely stay in place without discomfort. It stays inserted by a pair of ledges (9 a and 10 a) and/or catches (7 a and 8 a), each resting behind a respective: limen nasi ridge (a somewhat vertical central protuberance on a lateral nasal wall); and/or a foot of the columella (the meaty protuberance peripherally off the base of the columella). The insert is confined from shifting off those protuberances by being tall (distance between 1 a and 2 a); almost as tall near the entrances of the nose as the entrances themselves. When worn, the bridge (1 a and 2 a)/leg (3 a , 4 a an 5 a , 6 a) assemblies look like two central nose rings. The peripheral rigidity of the bridge/leg assemblies braces the lateral walls of the nose apart and keeps the ledges in position. Catches can position midway rearward on bottom legs; and they extend centrally enough to rest behind, without engaging, the feet of the columella. The function of the described
Manual Elements of German: Phonology and MorphologyManual Elements of German: Phonology and Morphology
The velie das Gaumensegel consists of the velum and the uvula together. In other words, it is the moveable rear portion of the roof of the mouth, which can be raised in order to close off the nasal passage as we do when swimming underwater without holding our nose.. In speaking, the velie is kept raised to close off the nasal cavity, except when producing nasal or nasalized sounds see 8, below. The nasal cavity die Nasenhohle is the passage through which air can pass by way of the nose to and from the throat. It can be and normally is sealed off during speech, except to produce a nasal nasal, der Nasenlaut or nasalized nasaliert sound. In producing a nasal sound, the air from the lungs does not exit by way of the oral cavity, but exclusively through the 10 Phonetics nasal cavity, whereas a nasalized sound is an oral sound produced with the velie not sealed and consequently with some air passing simultaneously through the nasal cavity.. The oral cavity die Mundhohle is simply the mouth. Sounds ...
Nasal cavityNasal cavity
The nasal cavity (or cavity of nose, latin: cavum nasi, cavitas nasi) is an irregular, bilateral air-filled space located above the roof of the mouth forming the internal part of the nose.
Widening nasal cavities - Answers on HealthTapWidening nasal cavities - Answers on HealthTap
Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Gilroy on widening nasal cavities: a deviated septum can be corrected surgically to bring the septum to the midline. If there are symptoms like nasal obstruction, snoring or recurrent sinusitis, have your nose evaluated by a board certified otolaryngologist.
Treatment of Mammalian Physiological Reaction of IgE Antibodies Present in Said Mammal Upon Contact With the Corresponding...Treatment of Mammalian Physiological Reaction of IgE Antibodies Present in Said Mammal Upon Contact With the Corresponding...
0100] [0101] 1a) A 30-year-old male has seasonal allergic rhinitis. In May, prior to pollen formation, 30 units of BoNT topically applied in each nostril. Specifically, the nasal cavity is sprayed with a solution of 1% lidocaine and 1/2% neosynephrine to anesthetize and decongest the nasal mucosa, respectively. Then 1 cc of normal saline containing 30 units of BoNT is sprayed into each nasal cavity. This method of delivery, although commonly used for application of nasal medication, is inherently inefficient as a significant percentage of a sprayed medication will exit the posterior nasal cavity and be exhaled or swallowed. [0102] 1b) In another embodiment, the patient is treated by placing 1×3 cm2 cotton pledgets impregnated with 20 units of BoNT onto the medial surface of the turbinates and left for one hour, then removed by the physician. This delivery method is more efficient then a spray, however a significant percentage of the BoNT will not diffuse from the pledgets to the mucosa. [0103] ...
The arterial supply of the nasal cavity | Springer for Research & DevelopmentThe arterial supply of the nasal cavity | Springer for Research & Development
With the development of endonasal flaps, an understanding of the arterial anatomy of the nasal cavity has become increasingly important for clinicians. Despite this, there is a lack of current,...
Abnormal Passageway Between the Mouth and Nasal Cavity in Dogs | petMDAbnormal Passageway Between the Mouth and Nasal Cavity in Dogs | petMD
A fistula is characterized as an abnormal passageway between two openings, hollow organs, or cavities. They occur as a result of injury, infection, or disease. A communicating, vertical passageway between the mouth and nasal cavity is called an oronasal fistula.
tonette | Activity Streams | Spirituality Mind Body Institute | Page 10754tonette | Activity Streams | Spirituality Mind Body Institute | Page 10754
This is an associated step to extended range. Resonation of tone occurs in the throat, nasal cavities and mouth. Every one of these involved cavities might help in producing different frequencies of sounds. If you would like your tone to become beautifully superb, you need to learn balancing these resonances. When you change from low to middle to high areas of your personal voice, these resonances may also change. When you sing low notes, theyll resonate in the mouth and throat. Moving higher, you can have the notes resonating behind your soft palate (soft area of tissue that divides the nasal cavity and mouth) toward the nasal cavities. It is possible to have the notes resonating in your mind from your nasal cavity whenever you sing in the highest selection of your voice.. Familiarize With Your Vocal Registers. Mentioned previously will be the modifications in resonance your voice undergoes whenever you shift through different levels of your tone. Such changes are occasionally known as vocal ...
nasal cavity area hurts when i swallow - I cannot get a diagnosis. - Condition | Our Healthnasal cavity area hurts when i swallow - I cannot get a diagnosis. - Condition | Our Health
Hey guys, just starting today my nasal cavity area is feeling really sensitive to cold air, but when i breathe hot air it feels great. It feels like theres a lot of mucus inside the area and its hard to get it. My throat feels fine, doesnt hurt when i breathe through my mouth, just a weird feeling when i breathe through my nose and hurts a little when i swallow. It may just be a cold, but is there any way I could make it feel a bit better? Thanks!. Reply Follow This Thread Stop Following This Thread Flag this Discussion ...
Tomographic PIV measurements of flow patterns in a nasal cavity with geometry acquisition, Experiments in Fluids | 10.1007...Tomographic PIV measurements of flow patterns in a nasal cavity with geometry acquisition, Experiments in Fluids | 10.1007...
Read "Tomographic PIV measurements of flow patterns in a nasal cavity with geometry acquisition, Experiments in Fluids" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Mouse Nasal Cavity [image] | EurekAlert! Science NewsMouse Nasal Cavity [image] | EurekAlert! Science News
Schematic of the mid-sagittal plane of the mouse skull and brain. The pathway of cerebrospinal fluid flow is shown by blue arrows, flowing around the brain and spinal cord. Cerebrospinal fluid drains from the brain and into the nasal cavity through a bony plate known as the cribriform plate.
Nasal Cavity Components | Internal Medicine Board Questions | KnowmedgeNasal Cavity Components | Internal Medicine Board Questions | Knowmedge
Medical Mnemonics - Nasal Cavity Components - Anatomy Mnemonics - Use Knowmedges internal medicine board questions to pass the IM Board Exam. Start learning today!
Nasal cavities, artwork - Stock Image C020/8438 - Science Photo LibraryNasal cavities, artwork - Stock Image C020/8438 - Science Photo Library
Illustration of the nasal cavities of the cranium. This is a lateral wall view. Illustration from Asklepios Atlas of the Human Anatomy. - Stock Image C020/8438
Dorothy Bishop Kristin Chenoweth Defying Gravity Nasal Cavity BroadwayDorothy Bishop Kristin Chenoweth Defying Gravity Nasal Cavity Broadway
... Bad Singers Riffing American Idol Americas Got Talent Voice Teacher Smash Katherine
Personal Care Magazine Latest Feature ArticlesPersonal Care Magazine Latest Feature Articles
Smell is one of the five most important senses (sight, hearing, touch and taste), allowing us to perceive life in its entirety. The perception of smell is a very complex process including the excitation of specialised receptors located in the human nasal cavity, and signal transmission to the brain. Smells are caused by volatile chemical compounds, which can often be recognised even when present in low concentrations. ...
20th week of 2009 patent applcation highlights part 4820th week of 2009 patent applcation highlights part 48
Aqueous-based pharmaceutical composition - An aqueous pharmaceutical composition which is capable of being sprayed into the nasal cavity of an individual and which comprises: (A) a pharmaceutically effective amount of solid particles of medicament which is effective in treating a bodily condition by virtue of its being present on the mucosal surfaces of the nasal cavity; and (B) a suspending agent in an amount effective to maintain said particles dispersed uniformly in the composition and to impart to the composition the following thixotropic properties: (i) the viscosity of the position in unsheared form is relatively high, with the composition being in gel-like form; (ii) as the composition is subjected to shear (shaken) in preparation for spraying, the viscosity of the composition becomes relatively low and such that the composition in the form of a mist flows readily into the nasal passages for deposit on the mucosal surfaces of the nasal cavity; and (D) in deposited form on the mucosal ...
Snore Killer Clipsen | Diabetes Loophole Reviews - Is It Scam?Snore Killer Clipsen | Diabetes Loophole Reviews - Is It Scam?
Snore Killer clip This clip contains rare earth magnets (800+ Gauss) developed by the NASA which gives the product physiotherapeutic properties.It reduces snoring caused by the obstructions of the respiratory tract due to the constriction of the nasal cavities, pharynx and uvula.The magnets in the SnoreKiller clip widen your nasal cavity which results in no more snoring.This same technique is used by athletes to increase the respiration and oxygen intake during sports. It ensures the opening of the nasal cavity. A fast and very effective method to stop snoring. Before start using any program or product, you must go through that given information and identify whether it works for your real causes to get the better result. This Snore Killer Nasa Completely non-habit forming Has no side effects Is 100% natural And starts working in as little as few minutes…And its now finally legal in the United State.. One of the advantages of being able to own a nose clip like this one is that it is certified ...
12/20/2016<...12/20/2016<...
Internal surface of nasal cavity is covered with mucus. Due to the presence of mucus in the nasal cavity, the lining of it is moist. There are numerous cilia present on the lining of the nasal cavity. The bacteria, dust and other wastes found in inhaled air stick onto the mucus. This prevents the entry of them into the lungs. By rhythemic movement of cilia the waste materials are sent out. The materials that are collected at pharynx are removed out with saliva ...
PLOS ONE: Equivalence of Self- and Staff-Collected Nasal Swabs for the Detection of Viral Respiratory PathogensPLOS ONE: Equivalence of Self- and Staff-Collected Nasal Swabs for the Detection of Viral Respiratory Pathogens
Background The need for the timely collection of diagnostic biosamples during symptomatic episodes represents a major obstacle to large-scale studies on acute respiratory infection (ARI) epidemiology. This may be circumvented by having the participants collect their own nasal swabs. We compared self- and staff-collected swabs in terms of swabbing quality and detection of viral respiratory pathogens. Methodology/Principal Findings We conducted a prospective study among employees of our institution during the ARI season 2010/2011 (December-March). Weekly emails were sent to the participants (n = 84), reminding them to come to the study center in case of new symptoms. The participants self-collected an anterior nasal swab from one nostril, and trained study personnel collected one from the other nostril. The participants self-collected another two swabs (one from each nostril) on a subsequent day. Human β-actin DNA concentration was determined in the swabs as a quality control. Viral respiratory
food allergiesfood allergies
The sinuses are hollow spaces located inside the bones in the skull to either side of the nose, behind and in between the eyes, in the forehead and at the back of the nasal cavity. The sinuses are lined with a moist, thin layer of tissue called a mucous membrane, which not only humidifies the air as you breathe it in, but also produces mucus to trap irritants such as dust, pollen and bacteria. The sinuses are lined with microscopic hairs called cilia. The function of cilia is to move mucus to flush the sinuses and nasal passageways of trapped irritants.. Sinus congestion is the blockage of one or more of the nasal passageways as a result of inflammation and swelling of the sinus tissues, secretion of mucus or a deviated septum (meaning obstruction of the nasal passage by the membranous ridge of cartilage in the nose that separates the nasal cavity into the two nostrils). Sinus congestion leads to impaired flow of mucus out of the sinuses. The build up of mucus in the sinuses causes increased ...
Blowing Your Nose May Be More Hazardous Than Helpful - RedorbitBlowing Your Nose May Be More Hazardous Than Helpful - Redorbit
Although it may come as second nature to blow your nose to alleviate stuffiness, some argue that it reverses the flow of mucus into the sinuses and slows down the drainage.. Dr. J Owen Hendley, and other pediatric infectious disease researchers at the University of Virginia, conducted CT scans and other measurements as subjects coughed, sneezed and blew their noses, according to the New York Times. The subjects, in some cases, had an opaque dye dripped into their rear nasal cavities.. Coughing and sneezing generated little, if any, pressure in the nasal cavities. However, nose blowing generated enormous pressure, equivalent to a persons diastolic blood pressure reading, Hendley said. This pressure propelled mucus into the sinuses every time. Hendley also said that it was unclear whether this was harmful, but added that during sickness it could shoot viruses or bacteria into the sinuses, and possibly cause further infection.. Dr. Anil Kumar Lalwani, the chairman of the department of ...
Doctors in India remove 750 gram tumour from teenage boys nose! »Doctors in India remove 750 gram tumour from teenage boy's nose! »
In what can only be called a blessing, an unnamed 17-year-old boy has finally been gifted a new life by doctors who succeeded in removing a baseball-sized tumour from his nose. The unnamed 17-year-old is only the sixth ever recorded case of having an ultra-rare form of his nasal cavity in the world. He had been living with the tumour for more than a decade, which had hindered his breathing, eating and speaking abilities, compelling him to take medical help from surgeons in India. A three-hour surgery is what it took to remove the 750 gram growth, which was made up of blood vessels, from his nasal cavity. The surgeons had to bring down his blood pressure in order to prevent any life-threatening bleeding, as high pressure can cause vessels to rupture. According to a report in the Daily Mail, Dr J C Passey, from New Delhis Loknayank Jaiprakash Narayan Hospital, said: This tumour is rare and normally the size of a tennis ball. But in this case it looked like another head growing along the cheeks ...
Nasal cavity - PapillomaNasal cavity - Papilloma
This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patients clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician ...
Articles: Lateral wall of nasal cavity | KenhubArticles: Lateral wall of nasal cavity | Kenhub
Read and get a deeper understanding with our free articles on the topic: Bones, cartilages and mucosa with focus on the lateral wall.
Nasal cavity - Fibroinflammatory proliferationNasal cavity - Fibroinflammatory proliferation
This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patients clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician ...
Medical Xpress - nasal cavityMedical Xpress - nasal cavity
Medical Xpress is a web-based medical and health news service that features the most comprehensive coverage in the fields of neuroscience, cardiology, cancer, HIV/AIDS, psychology, psychiatry, dentistry, genetics, diseases and conditions, medications and more.
Nasal sill | Radiology Reference Article | Radiopaedia.orgNasal sill | Radiology Reference Article | Radiopaedia.org
The nasal sill is the soft tissue ridge forming the posterior margin of the anterior naris. It also forms the caudal margin of the nasal vestibule. The nasal sill forms part of the nasal base, which is defined as the inferior third of the nose w...
NasaMist All-in-oneNasaMist All-in-one
Special Instructions for Large Volume Rinse: Stand in front of a sink, bend forward to comfort level and tilt your head down. Keep your mouth open and, without holding your breath, place the tip snugly in the nostril and squeeze the actuator until the solution starts draining from the opposite nasal passage or from your mouth. Allow the flow to continue for 2 to 3 seconds. Do not swallow the solution. Blow your nose gently, without pinching your nose completely, to avoid applying pressure on your eardrums. If tolerable, sniff in any residual solution remaining in the nasal passage once or twice prior to blowing your nose. This may clean out the posterior nasopharyngeal area, which is the area at the back of your nasal passage. At times, some solution may reach the back of your throat. If so, please spit it out. To help improve drainage of any residual solution, blow your nose gently while tilting your head to the side. Now repeat these steps on your other nasal passage. ...
FishBase GlossaryFishBase Glossary
english) The anterior and ventrally facing openings of the nostrils, which direct water into the nasal cavities. These are usually lateral on the nostrils and anterolateral to the excurrent apertures, but may be anterior to the excurrent apertures only. (See also: excurrent apertures, nostril ...
Untitled - WriteWorkUntitled - WriteWork
Nose- external nares- nostrils divided by nasal septum- internal nares- opening to nasopharynx- hard palate- separates oral/nasal cavities- soft palate- posterior to hard palate- nasal conchae- projections of nasal cavity that cause turbulence in airfl...
Respiratory System | SpringerLinkRespiratory System | SpringerLink
Development of the upper portion of the respiratory system is closely associated with formation of the face (external nares), stomodeum (nasal cavities) and cephalic levels of the pharyngeal foregut...
HPV-bedingten Hautkrankheiten und klinische FAQsHPV-bedingten Hautkrankheiten und klinische FAQs
Human papillomavirus (HPV) is a small type of DNA virus that mainly infects the skin and mucous membranes (such as the anal genitalia, oral cavity, nasal cavity, pharynx, and larynx mucosa), causing benign and malignant lesions of various skin mucosa.
What that bacteria in your nose does ... - NZ HeraldWhat that bacteria in your nose does ... - NZ Herald
As well as being a focal point for many viral infections, the nasal cavity is also a rich ecosystem of 50 or so different species of bacteria.
Sinsusitis | Disease ClickSinsusitis | Disease Click
The sinuses are air-filled spaces within the bones of your face that open up into the nasal cavity. Theyre lined with the same membrane as your nose. This lining is called the mucous membrane and it [...]. ...
Goals and Moving Moving (part 4) | wrrjourneyGoals and Moving Moving (part 4) | wrrjourney
I feel like Ive accomplished nothing this month. My weight is firmly in the 230s. Were not saying goodbye any time soon. My cold is a sinus and ear infection. The theory is that my allergy meds cant handle the amount of dust moving has stirred up for my head. My nasal cavities are revolting…
Chapter 23. Nasal Cavity | The Big Picture: Gross Anatomy | AccessMedicine | McGraw-Hill MedicalChapter 23. Nasal Cavity | The Big Picture: Gross Anatomy | AccessMedicine | McGraw-Hill Medical
The nasal cavity is divided into two lateral compartments separated down the middle by the nasal septum. The nasal cavity communicates anteriorly through the nostrils and posteriorly with the nasopharynx through openings called choanae. The nasal cavities and septum are lined with a mucous membrane and are richly vascularized by branches of the maxillary, facial, and ophthalmic arteries. The nasal cavity receives innervation via branches of the olfactory [cranial nerve (CN) I], ophthalmic (CN V-1), and maxillary nerves (CN V-2). ...
Temperature Profile in the Nasal Cavity - Keck - 2000 - The Laryngoscope - Wiley Online LibraryTemperature Profile in the Nasal Cavity - Keck - 2000 - The Laryngoscope - Wiley Online Library
Objectives/Hypothesis Inspired air is heated and moistened as it passes the nasal cavity. The temperature increase should be similar to a heated tube model, depending on the airflow.. Study Design Intranasal temperature values of 50 volunteers were measured after inspiration at different locations: nasal vestibule, nasal valve area, anterior to the head of the middle turbinate, and the nasopharynx. Temperature values were related to nasal airway resistance data.. Methods Intranasal temperature measurements were made with a miniaturized thermocouple. Nasal airway resistance was detected by active anterior rhinomanometry.. Results A logarithmic increase of air temperature from the anterior segment of the nose to the posterior part was noted. In the nasopharynx temperature was approximately 34°C. The highest increase in temperature was observed in the nasal valve area.. Conclusions The temperature increase of ambient air in the nasal airways can be compared with a logarithmic curve of the heating ...
US8616198B2 - Nasal dilator - Google PatentsUS8616198B2 - Nasal dilator - Google Patents
A nasal dilator that includes an upper resilient member for dilating the nasal valve and a lower resilient member for dilating the nostrils. The upper resilient member and lower resilient member may be attached to one another by a flexible substrate having a middle portion that is narrower in length than the upper or lower resilient members. The nasal dilator also may have adhesive tabs extending downwardly from the lower portion of the substrate on either side of the nose and towards the nostril entry, for temporary attachment to the side of the nasal vestibule to reduce nostril collapse. The nasal dilator also may include bendable or configurable hooks extending downwardly from the lower portion of the substrate and towards the nostril entrance for insertion into the nostril to reduce nostril collapse.
Reference values for acoustic rhinometry in children from 4 to 13 years oldReference values for acoustic rhinometry in children from 4 to 13 years old
Background: Despite a growing number of studies using acoustic rhinometry (AR) in children, no reference material exists that incorporates the entire age and height interval of preschool children up to puberty for a range of rhinometric variables. The aim of this study is to provide a reference range for nasal volumes and minimum cross-sectional areas (MCAs) in healthy nondecongested children aged 4-13 years old. Methods: Two hundred fifty-six primary school children (mean, 7.95 years; range, 3.8-13.1 years; 123 boys/133 girls) were measured by AR. Variables were MCA (first, second, and absolute minimum) and nasal volumes from 0 to 4 cm (Vol0-4), 0 to 5 cm (Vol0-5), 1 to 4 cm (Vol1-4), and 2 to 5 cm (Vol2-5) into the nasal cavity. Height and weight were measured and atopic status was determined by skin-prick test. Age and current and past respiratory health were recorded from a questionnaire. Results: In multiple linear regression models height was the main predictor for all AR variables ...
Ichiro MatsumotoIchiro Matsumoto
Yamaguchi, T.; Yamashita, J.; Ohmoto, M.; Aoudé, I.; Ogura, T.; Luo, W.; Bachmanov, A. A.; Lin, W.; Matsumoto, I.; Hirota, J. (2014) Skn-1a/Pou2f3 is required for the generation of Trpm5-expressing microvillus cells in the mouse main olfactory epithelium. BMC Neuroscience, 15, 13.. Bachmanov, A.A.; Bosak, N.P.; Lin, C.; Matsumoto, I.; Ohmoto, M.; Reed, D.R.; Nelson, T.M. (2013) Genetics of taste receptors. Current Pharmaceutical Design, (Electronic citation) PMID: 23886383. Matsumoto, I.; Ohmoto, M.; Abe, K. (2013) Functional diversification of taste cells in vertebrates. Seminars in Cell & Developmental Biology, 24, 210-214.. Matsumoto, I.(2013) Gustatory neural pathways from taste receptor cells revealed by genetic tracing. Bioscience, Biotechnology, Biochemisty, 77, 1359-1362.. Ohmoto, M.; Yamaguchi, T.; Yamashita, J.; Bachmanov, A.A.; Hirota, J.; Matsumoto, I. (2013) Pou2f3/Skn-1a is necessary for the generation or differentiation of solitary chemosensory cells in the anterior nasal cavity. ...
Nasal meatus - WikipediaNasal meatus - Wikipedia
The superior meatus is the smallest of the three. It is a narrow cavity located obliquely below the superior concha. This meatus is short, lies above and extends from the middle part of the middle concha below. From behind, the sphenopalatine foramen opens into the cavity of the superior meatus and the meatus communicates with the posterior ethmoidal cells. Above and at the back of the superior concha is the sphenoethmoidal recess which the sphenoidal sinus opens into. The superior meatus occupies the middle third of the nasal cavitys lateral wall.. The middle meatus is the middle-sized and located nasal opening, lying underneath the middle concha and above the inferior concha where the meatus extends along its length. On it is a curved fissure, the hiatus semilunaris, limited below by the edge of the uncinate process of the ethmoid and above by an elevation named the bulla ethmoidalis; the middle ethmoidal cells are contained within this bulla and open on or near to it.. Through the hiatus ...
frontal-sinus | eDoctorOnline.comfrontal-sinus | eDoctorOnline.com
nasal cavity, NOSE ANATOMY, nasal cavity, choana, nose anatomy, NASAL ANATOMY, Nasal anatomy, choana, sinus cavity, anatomy of nose, pharyngeal tonsil, pharyngeal tonsil, anatomy of nose, nasal vestibule, sphenoid sinus, anatomy of the nose, anatomy of the nose, nasal vestibule, anatomi hidung, sphenoid sinus, ...
Nasal fossa - Visual DictionaryNasal fossa - Visual Dictionary
Nasal fossa (profile): two cavities separated by a vertical plate. Air enters the nasal fossae through the nostrils and flows to an from the lungs.
DMOZ - Health: Conditions and Diseases: Cancer: Head and Neck: Nasal CavityDMOZ - Health: Conditions and Diseases: Cancer: Head and Neck: Nasal Cavity
Types of cancer found in the nasal and sinus cavities: Adenocarcinomas and mucoepidermoid cancers (cancers arising from gland cells) are the next most frequent type. Malignant lymphomas, a cancer arising from lymph or immune system cells. Malignant melanoma a cancer of pigment or skin color containing cells. Esthesioneuroblastomas come from the olfactory nerves, the nerves which govern the sense of smell. These cancers usually occur on the roof of the nasal cavity and involve a structure called the cribriform plate, which is a bone deep in the skull.
A locally constrained statistical shape model for robust nasal cavity segmentation in computed tomography - IEEE Conference...A locally constrained statistical shape model for robust nasal cavity segmentation in computed tomography - IEEE Conference...
Accurate segmentation of the nasal cavity plays a pivotal role for the creation of patient specific nasal models which are essential for the diagnosis and
Noson® Nasal Dilator - Better breathing through Noson nose spreaderNoson® Nasal Dilator - Better breathing through Noson nose spreader
Noson Nasal Dilator gently spreads the nostrils from the inside to improve nasal breathing. Better breathing through optimized nasal breathing spreader
New Page 1New Page 1
Figure 1-39. Organs of the respiratory system.. Nasal Cavity. Air enters the nasal cavity through the nostrils (nares). Lining the nasal passages are hairs, which, together with the mucous membrane, entrap and filter out dust and other minute particles that could irritate the lungs. Incoming air is warmed and moistened in the chambers of the nasal cavity to prevent damage to the lungs. The nasal and oral cavities are separated by the palate. The anterior, rigid portion is called the hard palate, and the posterior fleshy part is called the soft palate. The mouth and nose serve as secondary respiratory structures.. Pharynx. The pharynx, or throat, serves both the respiratory and digestive systems and aids in speech. It has a mucous membrane lining that traps microscopic particles in the air and aids in adjusting temperature and humidifying inspired (inhaled) air. The pharynx connects with the mouth and nasal chambers posteriorly. According to its location, the pharynx is referred to as the ...
What is the role of anesthesia in anterior nasal packing for epistaxis?What is the role of anesthesia in anterior nasal packing for epistaxis?
Soak cotton balls in a mix of 2% lidocaine and 1:1000 epinephrine. Put 1-2 cotton balls into the bleeding nostril. (If bleeding is not clearly unilateral, put cotton balls into both nostrils.) Place a... more
Brevet US4414977 - Nasal dilator - Google BrevetsBrevet US4414977 - Nasal dilator - Google Brevets
A nasal dilator (10) is disclosed which is adapted to be inserted in the nostril of the human nose to prevent the tissues of the ostium internum of the nose from drawing in during breathing. The device includes generally elongated top and bottom rings (11, 12) which are spaced apart and connected together by a rear strut (13) and a front strut (14). The front strut (14) is longer than the rear strut (13) and includes a bend (15) therein formed at a position close to the front end of the bottom ring (12). One elongated side (17) of the top ring (11) may be concaved to better fit the septum at the ostium internum, and an elongated side (18) of the bottom ring (12) may also be concaved for maximum wearer comfort. When emplaced in the nose, the top ring (11) fits comfortably in the ostium (31) within the nostril to prevent the tissues therein from being drawn in during inhalation and to reduce extra flow resistance during exhalation, and the bottom ring (12) fits above the entrance to the nostril and serves
US4414977A - Nasal dilator - Google PatentsUS4414977A - Nasal dilator - Google Patents
A nasal dilator (10) is disclosed which is adapted to be inserted in the nostril of the human nose to prevent the tissues of the ostium internum of the nose from drawing in during breathing. The device includes generally elongated top and bottom rings (11, 12) which are spaced apart and connected together by a rear strut (13) and a front strut (14). The front strut (14) is longer than the rear strut (13) and includes a bend (15) therein formed at a position close to the front end of the bottom ring (12). One elongated side (17) of the top ring (11) may be concaved to better fit the septum at the ostium internum, and an elongated side (18) of the bottom ring (12) may also be concaved for maximum wearer comfort. When emplaced in the nose, the top ring (11) fits comfortably in the ostium (31) within the nostril to prevent the tissues therein from being drawn in during inhalation and to reduce extra flow resistance during exhalation, and the bottom ring (12) fits above the entrance to the nostril and
negroni Archives - Taste and Tipplenegroni Archives - Taste and Tipple
Ugh…I have been fighting a cold for the last week and I forgot how much I hate it. Is the capacity of the human nasal cavity endless? Ive felt like I was drowning in my own snot for the past week. Good thing were not eating anything in todays post, eh? Would have spoiled your…. Read More. ...
Sinus Infections - Sinus Relief - Nasal IrrigationSinus Infections - Sinus Relief - Nasal Irrigation
Nasal irrigation with Nasaline or the Neti Pot involves flooding the nasal cavity with warm saline solution.The goal is to clear out excess mucus and particulates and moisturize the nasal cavity.
anatomyEXPERT - Inferior nasal concha bone - Structure DetailanatomyEXPERT - Inferior nasal concha bone - Structure Detail
This is a small, delicate bone that projects from the lateral wall of the nasal cavity. The projection is scroll-like, arching inferiorly and laterally from the lateral wall. It helps subdivide the nasal cavity into the inferior meatus below and superior meatus above. The medial surface of the bone is convex and furrowed by many longitudinal grooves that transport vessels under the thick nasal mucosa covering its surface. The lateral surface of the bone is concave and forms most of the superior and medial boundary of the inferior nasal meatus. The inferior border of the bone has a rough, spongy appearance. This surface has a thick mucosal covering in life. Superiorly the bone forms an articular border with four bones. Three irregular processes project from this border to articulate with neighboring bones ...
Localization of Staphylococcus aureus in tissue from the nasal vestibule in healthy carriers | BMC Microbiology | Full TextLocalization of Staphylococcus aureus in tissue from the nasal vestibule in healthy carriers | BMC Microbiology | Full Text
In the present study, we have assessed the S. aureus localization within vestibulum nasi in healthy individuals. By using a confocal scanning laser microscopy approach, we found that S. aureus is localised in both the upper and lower layers of epidermis within the nasal epithelium of healthy individuals. We also observed intracellular localization of S. aureus in the different layers of epidermis.. As expected, we identified the majority of S. aureus in the stratum corneum. In artificially colonized cotton rats, localization of S. aureus has been shown in the stratum corneum of intranasal squamous epithelium [24] where S. aureus appeared as single cells or diplococci, a finding that is corroborated by our study. This is also in accordance with other studies showing that adherence of S. aureus to nasal cells is directly related with the age of the epithelial cells. The most differentiated cells bind most S. aureus, while the youngest cells (less differentiated keratinocytes in the lower epidermis ...
New anatomical profile of the nasal musculature: Dilator naris vestibularis, dilator naris anterior, and alar part of the...New anatomical profile of the nasal musculature: Dilator naris vestibularis, dilator naris anterior, and alar part of the...
TY - JOUR. T1 - New anatomical profile of the nasal musculature. T2 - Dilator naris vestibularis, dilator naris anterior, and alar part of the nasalis. AU - Hur, Mi Sun. AU - Hu, Kyung Seok. AU - Youn, Kwan Hyun. AU - Song, Wu Chul. AU - Abe, Shinichi. AU - Kim, Hee Jin. PY - 2011/3/1. Y1 - 2011/3/1. N2 - The aim of this study was to clarify the morphology and topography of the dilator naris vestibularis, dilator naris anterior, and alar part of the nasalis. Anatomical variations in the topographic relationships are also described to provide critical data for understanding nasal muscular functions. Anatomical and histological examinations were performed on 40 specimens of embalmed Korean adult cadavers. The dilator naris vestibularis muscle (named by the present authors) was located between the external and vestibular skin of the alar lobule. The muscle fibers radiated along the dome-shaped nasal vestibule. The dilator naris anterior muscle originated from the frontal surfaces of the lateral ...
A preliminary report on the effect of gabapentin pretreatment on periprocedural pain during in-office posterior nasal nerve...A preliminary report on the effect of gabapentin pretreatment on periprocedural pain during in-office posterior nasal nerve...
Fingerprint Dive into the research topics of A preliminary report on the effect of gabapentin pretreatment on periprocedural pain during in-office posterior nasal nerve cryoablation. Together they form a unique fingerprint. ...
Rhinoscopy in Dogs & Cats - Looking Inside the Nasal CavityRhinoscopy in Dogs & Cats - Looking Inside the Nasal Cavity
Rhinoscopy is a minimally invasive modality for viewing the inside of the nasal passages. Learn more about why your veterinarian may recommend this test!
Patente US4294829 - Powdery pharmaceutical composition and powdery preparation for application ... - Google PatentesPatente US4294829 - Powdery pharmaceutical composition and powdery preparation for application ... - Google Patentes
A powdery pharmaceutical composition and a powdery preparation in unit dosage form for application to the mucosa of the nasal cavity, at least about 90% of which consists of particles having an effective particle diameter of about 20 to about 250 microns, said composition comprising a lower alkyl ether of cellulose having a viscosity, determined at about 37 C. for a 2% aqueous solution thereof, of at least about 5 centipoises and a pharmaceutically effective amount of a drug; and a method for treating or preventing a human nasal disease, which comprises administering a powdery preparation in unit dosage form to the nasal cavity of a human being requiring treatment or prevention of a nasal disease through his nostrils.
News - Tagged x-ray - Famous Skin CareNews - Tagged 'x-ray' - Famous Skin Care
Aspergillus fumigatus is a fungus infection which is often seen affecting the nasal cavity of long-nosed dogs. It is an unpleasant infection to have because it causes discomfort and sneezing, it can cause significant damage to the lining and bony structures within the nasal cavity, and it can be a very difficult condition to treat.The signs associated with aspergillus infection in the nose are :* Blood or blood-stained pus discharging from the nostril (usually only one-side of the nose is affected)* Ulcers around the rim of the nose* Pain* Sneezing What Causes it? The cause of the infection is not known in.... ...
News - Tagged blood from nose - Famous Skin CareNews - Tagged 'blood from nose' - Famous Skin Care
Aspergillus fumigatus is a fungus infection which is often seen affecting the nasal cavity of long-nosed dogs. It is an unpleasant infection to have because it causes discomfort and sneezing, it can cause significant damage to the lining and bony structures within the nasal cavity, and it can be a very difficult condition to treat.The signs associated with aspergillus infection in the nose are :* Blood or blood-stained pus discharging from the nostril (usually only one-side of the nose is affected)* Ulcers around the rim of the nose* Pain* Sneezing What Causes it? The cause of the infection is not known in.... ...
oropharynx anatomyoropharynx anatomy
11/10/2009 03:59:00 medial view of the nasal cavity, the mouth and the oropharynx part ( that,s the region just behind the tongue) showing: 1. nasal cavity 2. palate 3. oral cavity 4. tongue 5. lips 6. jaw 7. larynx 8. e... More Details ...
Intranasal Drug Delivery to the Central Nervous System: Present Status and Future Outlook. | Pubblicazioni Scientifiche UnicamIntranasal Drug Delivery to the Central Nervous System: Present Status and Future Outlook. | Pubblicazioni Scientifiche Unicam
Pharmacological treatment of disorders affecting the central nervous system (CNS) is a complex task. Different parameters may negatively influence effective targeting of the CNS and drug compliance, for example, poor brain-blood barrier (BBB) permeability, patient forgetfulness or neglect, and lack of collaboration between caregivers and patients. Pharmaceutical science is constantly looking for new administration strategies for efficient drug delivery to the CNS that could obviate these problems. Drugs can reach the brain through the skin, nasal cavity and oral cavity, and while effective transport of drugs from skin and nasal cavity to the CNS has been documented, these studies did not stimulate the introduction of a substantial number of new drug formulations to treat CNS disorders. Nasal drug delivery, generally used to administer locally acting molecules, is not common for systemic administration, although the possibility and importance of such systemic administration is suggested by ...
Nasal Obstruction | St. George, UT | Southern Utah Ear, Nose, and ThroatNasal Obstruction | St. George, UT | Southern Utah Ear, Nose, and Throat
A nasal obstruction is blockage of the nasal cavity that impede airflow in and out of the nose. Either one or both nostrils may be affected. (435) 628-3334
Definition for nasal septumDefinition for nasal septum
nasal septum definition: A septum in the nose, dividing the left and right airways within the nose, dividing both nostrils.; a partition of bone tissue and cartilage involving the nasal cavities
wgrz.com | Mystery off I-85 | Do you know Jane?wgrz.com | Mystery off I-85 | Do you know Jane?
Once the markers are in place, Lawson photographs the skill, giving her a better idea about how big her face might be or how far her faces features might protrude.. "There are a lot of other interesting things you can learn from the skull. When you turn it sideways, and you have your nasal cavity here. Theres a small stem that comes out of the bottom of the nasal cavity. If you continue that stem in the direction that, its already existent, and you continue the top of the nasal bone, where they meet gives me a good indication of how long the nose is," Lawson said.. "Theres a lot of great tricks that help me to kind of get, at least a good feel for what the person looks like.". Using markers for placement, she coats the skull in clay and forms the head and face.. "You would connect one piece to the next, until you have the face fleshed out and then you would coat it in a small layer of clay, as if it were skin. You put dolls eyes into it to kind of replicate a more realistic look. And you ...
Patent EP1878456A1 - Spray bottle with a nozzle for delivering nasal drops into the nasal cavity - Google PatentsPatent EP1878456A1 - Spray bottle with a nozzle for delivering nasal drops into the nasal cavity - Google Patents
In the bottle the fluid is introduced into the tank with a small width and the nozzle (2) has conical section and hole (5) is arranged in the lateral surface of the cone, where the discharge element having holes (5), which is assigned on the spraying direction turned away from projection plate (7).
Frank S.ent Nasal Cavity Cleaner - writchs wramblingsFrank S.ent Nasal Cavity Cleaner - writch's wramblings
This page contains a single entry by writch published on June 28, 2010 12:57 PM.. İstanbul (not Constantinople) was the previous entry in this blog.. Big Changes is the next entry in this blog.. Find recent content on the main index or look in the archives to find all content.. ...
Nasal septum, Ask a Doctor about Nasal septum - Doctors insight on HealthcareMagicNasal septum, Ask a Doctor about Nasal septum - Doctor's insight on HealthcareMagic
The wall dividing the nasal cavity into halves; it is composed of a central supporting skeleton covered on each side by a mucous membrane.
Ala of Nose - Structure, Arterial and Nerve Supply and Nasal Alar Necrosis - Earths LabAla of Nose - Structure, Arterial and Nerve Supply and Nasal Alar Necrosis - Earth's Lab
The external nose is attached superiorly to the nasal bones and inferiorly to the anterior nasal spine. Each protruding lateral margin of nose is known…
Strep Carrier/ Chronic Swollen Nasal Passages - Ear, Nose & Throat - MedHelpStrep Carrier/ Chronic Swollen Nasal Passages - Ear, Nose & Throat - MedHelp
I am a strep carrier and have chronic swollen nasal passages that are most likely the result of lifelong allergies. Even though strep carriers are not supposed to become more ill than others, I alway...
trachea - Search results on GenericLook.comtrachea - Search results on GenericLook.com
process begins with the inhalation of air through the nostrils going to the nasal passages. The air then travels to the nasal cavity and into the back of the throat going into the windpipe or the trachea. The air is filtered from foreign objects by the cilias that are found in the trachea, and this air goes to the lungs. The old air in the lungs also goes out of the nose, which is what we ...
Toxic Responses of the Respiratory System | Casarett & Doulls Essentials of Toxicology, 3e | AccessBiomedical Science | McGraw...Toxic Responses of the Respiratory System | Casarett & Doull's Essentials of Toxicology, 3e | AccessBiomedical Science | McGraw...
The respiratory tract is divided into the upper respiratory tract (extrathoracic airway passages above the neck) and lower respiratory track (airway passages and lung parenchyma below the pharynx) (Figure 15-1). The upper respiratory track reaches from the nostril or mouth to the pharynx and functions to conduct, heat, humidify, filter, and chemosense incoming air. Leaving the nasal passage, air is warmed to about 33°C and humidified to about 98% water saturation. Air is filtered in the nasal passages with highly water-soluble gases being absorbed efficiently. The nasal passages also filter particles, which may be deposited by impaction or diffusion on the nasal mucosa. ...
Toxic Responses of the Respiratory System | Casarett & Doulls Essentials of Toxicology, 3e | AccessPharmacy | McGraw-Hill...Toxic Responses of the Respiratory System | Casarett & Doull's Essentials of Toxicology, 3e | AccessPharmacy | McGraw-Hill...
The respiratory tract is divided into the upper respiratory tract (extrathoracic airway passages above the neck) and lower respiratory track (airway passages and lung parenchyma below the pharynx) (Figure 15-1). The upper respiratory track reaches from the nostril or mouth to the pharynx and functions to conduct, heat, humidify, filter, and chemosense incoming air. Leaving the nasal passage, air is warmed to about 33°C and humidified to about 98% water saturation. Air is filtered in the nasal passages with highly water-soluble gases being absorbed efficiently. The nasal passages also filter particles, which may be deposited by impaction or diffusion on the nasal mucosa. ...
well…this is it…well…this is it…
Posted: October 11, 2012 at 5:35 am. back to work i go. i feel bad cuz i slept thru the night and didnt get up to let mya out. this morning her bedding in the crate was wet and i feel really badly about that….sorry mya, i suck.. lottie discovered my bed last night and it looks like she is planning never to leave. this is why i always feel so sorry for kenneled or hunting hounds…they crave comfy couches and beds even more than poodles and shitzheads. i think when their noses and voice boxes finally pack it in for the day, their bodies have put on a few miles and they need that soft comfy bed to recharge their nasal passages. lottie purged her nasal cavities before going to sleep..all over my blanket. no lie the whole thing was freaking wet like we were out in a light rain shower. please lottie sneeze before you come to bed, i cant handle any purging repeats ...
Nasal Airway Anatomy - Southlake Sinus & Snoring CenterNasal Airway Anatomy - Southlake Sinus & Snoring Center
Nasal airway anatomy functions to warm and humidify the inspired air, smell (olfaction), provide a local immune defense, and the nose filters the air.
Nostril Flaring - Symptom InformationNostril Flaring - Symptom Information
Nostril Flaring, causes of Nostril Flaring, common and rare causes, symptom information, types, related symptoms, diagnosis, misdiagnosis of Nostril Flaring, tests, and more information.
What is the Nasal Mucosa? (with pictures)What is the Nasal Mucosa? (with pictures)
The nasal mucosa is the tissue that lines the nasal cavity, which is made up of four layers. The main purpose of the nasal mucosa...
Air enters the nose by passing through the external nares or nostrils | Respiratory System | LungAir enters the nose by passing through the external nares or nostrils | Respiratory System | Lung
Air enters the nose by passing through the external nares or nostrils - Download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online.
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Mouse Nasal Cavity [image] | EurekAlert! Science NewsMouse Nasal Cavity [image] | EurekAlert! Science News
Nasal Cavity and Paranasal Sinus Cancer StagesNasal Cavity and Paranasal Sinus Cancer Stages
nasal cavity Archives - ScienceBlog.comnasal cavity Archives - ScienceBlog.com
nasal cavity - Lupusnasal cavity - Lupus
What Causes Nasal Cavity and Paranasal Sinus Cancers?What Causes Nasal Cavity and Paranasal Sinus Cancers?
Dorothy Bishop Kristin Chenoweth Defying Gravity Nasal Cavity BroadwayDorothy Bishop Kristin Chenoweth Defying Gravity Nasal Cavity Broadway
Foreign Body in Nasal Cavity: Removal and Subsequent Rhinoplasty | The BMJForeign Body in Nasal Cavity: Removal and Subsequent Rhinoplasty | The BMJ
Treatments for recurrent nasal cavity cancer - Canadian Cancer SocietyTreatments for recurrent nasal cavity cancer - Canadian Cancer Society
Malignant Tumors of the Nasal Cavity: Practice Essentials, Epidemiology, EtiologyMalignant Tumors of the Nasal Cavity: Practice Essentials, Epidemiology, Etiology
Treatments for stage 1 nasal cavity cancer - Canadian Cancer SocietyTreatments for stage 1 nasal cavity cancer - Canadian Cancer Society
Nasal cavity - Simple English Wikipedia, the free encyclopediaNasal cavity - Simple English Wikipedia, the free encyclopedia
Solitary chemoreceptor cells in the nasal cavity serve as sentinels of respiration | PNASSolitary chemoreceptor cells in the nasal cavity serve as sentinels of respiration | PNAS
Temperature Profile in the Nasal Cavity - Keck - 2000 - The Laryngoscope - Wiley Online LibraryTemperature Profile in the Nasal Cavity - Keck - 2000 - The Laryngoscope - Wiley Online Library
Molecular Analysis Offers Treatment Hints for Rare Nasal Cavity Cancer | GenomeWebMolecular Analysis Offers Treatment Hints for Rare Nasal Cavity Cancer | GenomeWeb
Singapore COVID-19-testing SwabBot pushes boundaries (and nasal cavities)Singapore COVID-19-testing 'SwabBot' pushes boundaries (and nasal cavities)
Resident aerobic microbiota of the adult human nasal cavityResident aerobic microbiota of the adult human nasal cavity
Free Anatomy Flashcards about ANA534 Nasal CavityFree Anatomy Flashcards about ANA534 Nasal Cavity
Comparative morphometry of the nasal cavity in rats and mice. - PubMed - NCBIComparative morphometry of the nasal cavity in rats and mice. - PubMed - NCBI
NIOSHTIC-2 Publications Search - 20044482 - Airflow and deposition of nano-particles in a human nasal cavity.NIOSHTIC-2 Publications Search - 20044482 - Airflow and deposition of nano-particles in a human nasal cavity.
Malignant tumor of the nasal cavity symptoms, treatments & forums | PatientsLikeMeMalignant tumor of the nasal cavity symptoms, treatments & forums | PatientsLikeMe
Nasal cavity - RhinoscleromaNasal cavity - Rhinoscleroma
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Nasal CavityNose NeoplasmsNasal MucosaNasal SeptumRhinometry, AcousticNose DiseasesTurbinatesParanasal Sinus NeoplasmsParanasal SinusesNoseNasal PolypsNasal ObstructionOlfactory MucosaNasal Lavage FluidAdministration, IntranasalNasal DecongestantsNasal SpraysEthmoid SinusEpistaxisEsthesioneuroblastoma, OlfactoryMaxillary SinusGranuloma, PyogenicMaxillary Sinus NeoplasmsRhinitisRhinitis, AtrophicEthmoid BoneParanasal Sinus DiseasesOlfactory NerveNasal BoneRhinomanometryEndoscopySinusitisModels, AnatomicPeritoneal CavityPasteurella InfectionsMouthRhinoscleromaPapilloma, InvertedNitrosaminesVomeronasal OrganTomography, X-Ray ComputedHistology, ComparativeAngiomyomaBordetella bronchisepticaRhinitis, Allergic, PerennialAngiofibromaSmellTampons, SurgicalBordetella InfectionsRespiratory SystemNose Deformities, AcquiredNasal CartilagesAnatomy, ComparativeOlfactory BulbDecalcification TechniqueOtorhinolaryngologic Surgical ProceduresNasopharynxHemangiopericytomaOlfactory Marker ProteinAirway ResistanceFrontal SinusPalatal Expansion TechniqueNasopharyngeal NeoplasmsHydrocarbons, IodinatedAir MovementsMyiasisOlfactory Nerve InjuriesPasteurella multocidaDental Cavity PreparationRespiratory Tract NeoplasmsCoronavirus, RatMethylmethacrylateDacryocystorhinostomyRats, Inbred F344OdorsOlfactory Receptor NeuronsPleural CavityPasteurellaAdministration, InhalationNasal Surgical ProceduresOlfactory PathwaysOrbitMaxillary ArteryNasal LavageRodent DiseasesPulmonary VentilationWoodNasal Provocation TestsPapillomaHamartomaLymphoma, Extranodal NK-T-CellInhalationEpitheliumLacrimal Duct ObstructionPalatal NeoplasmsTracheal NeoplasmsMaxillary NeoplasmsSkullCarcinogensSkull BaseIrritantsSwine DiseasesMarsupialiaAdenoma, PleomorphicRhinoplastyTrigeminal NerveFormaldehydeImmunohistochemistryFatal OutcomeExocrine GlandsLithiasisTrachea
SeptumVestibuleNoseMucosaOral cavityHuman nasal cavityObstructionNasopharynxPharynxSinusLeft nasalRight nasalMucosalTurbinatesPosteriorTumorsNostrilsWalls of the nasal cavityCancersSphenoidBoneConchaePassagesSquamousMedial wallBonyComputed tomographyDividesHistologyAnteriorHard palatePapillomaCancerCribriformEpistaxisMaxillaryRespiratory epitheliumSymptomsLateral wall of the nasal cavityDischargeAirwaySphenopalatineDrain into the nasal cavityConchaFloor of the nasal cavityLesion in the nasal cavityAnatomy of the Nasal Cavity
Septum40
Vestibule17
Nose37
Mucosa13
Oral cavity4
  • To investigate a possible peroral route of infective endocarditis (IE), the occurrence of staphylococci in the oral cavity was examined using saliva and supragingival plaque specimens from 56 systemically and periodontally healthy adults aged 22-43 years old (27.1+/-5.3). (nii.ac.jp)
  • Since the provision of micro-organisms from the nasal cavity was shown and occurrence rates in the oral cavity were adequate, these results suggest a possible peroral route of staphylococcal IE, as in cases of viridans streptococcal IE. (nii.ac.jp)
  • Head and neck cancer - The common carcinomas of the oral cavity, pharynx, and larynx as well as other tumors that affect the head and neck. (enacademic.com)
  • The incisive canal is a root way between the nasal pit and the incisive fossa of the oral cavity. (healthdivinetips.com)
Human nasal cavity6
  • Airflow and deposition of nano-particles in a human nasal cavity. (cdc.gov)
  • Human nasal cavity. (sciencephoto.com)
  • Developments in the field of CFD and high-performance computing (HPC) allow us to individually predict the flow in a patient's human nasal cavity by means of numerical simulations, thereby enabling us to identify anatomical locations of pathologies. (fz-juelich.de)
  • Inspiratory flow in the human nasal cavity. (fz-juelich.de)
  • To better understand mucus flow behaviour on the human nasal cavity wall, we present computational model development, and evaluation of mucus motion on a realistic nasal cavity model reconstructed from CT-scans. (edu.au)
  • As a first step towards mucus motion modelling this study provides important information that accurately simulates a mucus velocity field on a human nasal cavity wall, for assessment of toxicology and efficacy of intranasal drug delivery. (edu.au)
Obstruction7
Nasopharynx9
Pharynx6
  • The cilia move the mucus down the nasal cavity to the pharynx, where it can be swallowed. (wikipedia.org)
  • These studies show that the microbiota of the nasal cavity of adults is strikingly different from that of the pharynx, and that the nasal cavity is a primary habitat for several species of diphtheroids recognized as opportunistic pathogens. (nih.gov)
  • How would infection in nasal passages and pharynx spread? (healthtap.com)
  • Infections of the nasal passages, sinuses and pharynx can spread to other areas of the body when the germs find their way into the blood stream (mostly) or though the lymphatic system . (healthtap.com)
  • Air is breathed in through the nasal cavity and/or mouth and down through the throat (the pharynx). (edoctoronline.com)
  • This is an article covering the histology of the upper respiratory tract - nasal cavity, pharynx and epiglottis. (kenhub.com)
Sinus50
Left nasal4
Right nasal4
Mucosal8
Turbinates8
Posterior12
Tumors14
Nostrils5
Walls of the nasal cavity3
  • Moisture (small amount of water) is added to the air you breath by special cells in the walls of the nasal cavity. (wikipedia.org)
  • Which specific nerve innervates the anterior and upper regions of the medial and lateral walls of the nasal cavity? (studystack.com)
  • Which two general vessels supply the walls of the nasal cavity with blood? (studystack.com)
Cancers4
Sphenoid4
Bone15
Conchae4
Passages5
Squamous3
Medial wall2
Bony2
  • Cerebrospinal fluid drains from the brain and into the nasal cavity through a bony plate known as the cribriform plate. (eurekalert.org)
  • Connective tissue and skin cover the bony and cartilaginous components of the nasal dorsum. (orange.com)
Computed tomography3
Divides1
  • It is a conduct that link the lungs with the nasal cavity and it divides in two parts one for each lung. (thinglink.com)
Histology1
  • The nasal cavity microanatomy of farmed fingerlings of African catfish, Clarias gariepunus was investigated to fill existing knowledge gap on its histology from available literatures. (ajol.info)
Anterior4
Hard palate1
Papilloma7
Cancer16
Cribriform2
Epistaxis1
Maxillary3
Respiratory epithelium4
Symptoms3
Lateral wall of the nasal cavity3
Discharge7
Airway3
  • Temperature values were related to nasal airway resistance data. (wiley.com)
  • The scientists also found that ACE2 - the cell surface receptor that the virus uses to get into cells - was more abundant on nasal-lining cells and less abundant on the surface of lower airway cells. (technologynetworks.com)
  • This difference could explain, at least in part, why upper airway nasal-lining cells were more susceptible to infection. (technologynetworks.com)
Sphenopalatine2
Drain into the nasal cavity2
Concha5
Floor of the nasal cavity1
  • The floor of the nasal cavity is formed by the palatine processes of the maxillae. (anatomynext.com)
Lesion in the nasal cavity1
  • Although rare, the imaging characteristics of GCRGs should be recognized, and this entity should be suggested when the clinical information, CT, and MR features suggest a fibrous-osseous lesion in the nasal cavity. (ajnr.org)
Anatomy of the Nasal Cavity3
  • Understanding the anatomy of the nasal cavity and its anomalies is important because it leads to an understanding of imaging anatomy, which is needed to plan the surgical approach. (medscape.com)
  • With the development of endonasal flaps, an understanding of the arterial anatomy of the nasal cavity has become increasingly important for clinicians. (springer.com)
  • Having a fundamental knowledge of the anatomy of the nasal cavity is vital in understanding its functions. (statpearls.com)
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