• lateral
  • Each lateral nasal wall contains three pairs of turbinates (nasal conchae), which are small, thin, shell-form bones: (i) the superior concha, (ii) the middle concha, and (iii) the inferior concha, which are the bony framework of the turbinates. (wikipedia.org)
  • Lateral to the turbinates is the medial wall of the maxillary sinus. (wikipedia.org)
  • it should not be used with people with diseases or conditions inaccessible to endoscopic procedures, for example lateral frontal sinus disease and stenosis of internal opening of frontal sinus. (wikipedia.org)
  • In addition, each of these is subdivided into a medial (inside) and lateral (outside) component, by an incomplete bone wall that carries the infraorbital canal containing nerves and blood vessels. (wikipedia.org)
  • skull
  • These air sinuses lighten the weight of the skull and give resonance to the voice. (thehealthsuccesssite.com)
  • The brain is protected by one of two main parts of the skull called the neurocranium, which actually consists of eight different bones. (reference.com)
  • The biological role of the sinuses is debated, but a number of possible functions have been proposed:[citation needed] Decreasing the relative weight of the front of the skull, and especially the bones of the face. (wikipedia.org)
  • Sinuses are mucosa-lined airspaces within the bones of the face and skull. (wikipedia.org)
  • These bones are expanded into broad, flat plates, as in the cranium (skull), the ilium (pelvis), sternum and the rib cage. (wikipedia.org)
  • The intervening cancellous tissue is called the diploë, and this, in the nasal region of the skull, becomes absorbed so as to leave spaces filled with air-the paranasal sinuses between the two tables. (wikipedia.org)
  • shown in red) Flat bones in human skull. (wikipedia.org)
  • It is situated in the middle of the skull towards the front, in front of the temporal bone and the basilar part of the occipital bone. (wikipedia.org)
  • An osteoma (plural: "osteomata") is a new piece of bone usually growing on another piece of bone, typically the skull. (wikipedia.org)
  • Additionally, the sinuses within the skull are able to drain through the nasal passage. (wikipedia.org)
  • These consist of: Frontal sinuses: Occupy the dorsal (top) part of the skull, between the eyes. (wikipedia.org)
  • If the force of the impact is excessive, the bone may fracture at or near the site of the impact and cause damage to the underlying physical structures contained within the skull such as the membranes, blood vessels, and brain. (wikipedia.org)
  • While an uncomplicated skull fracture can occur without associated physical or neurological damage and is in itself usually not clinically significant, a fracture in healthy bone indicates that a substantial amount of force has been applied and increases the possibility of associated injury. (wikipedia.org)
  • Basilar fractures are in the bones at the base of the skull. (wikipedia.org)
  • The bones of the skull are in three layers: the hard compact layer of the external table (lamina externa), the diploë (a spongy layer of red bone marrow in the middle, and the compact layer of the inner table (Lamina interna). (wikipedia.org)
  • Areas of the skull that are covered with muscle have no underlying diploë formation between the internal and external lamina, which results in thin bone more susceptible to fractures. (wikipedia.org)
  • Skull fractures occur more easily at the thin squamous temporal and parietal bones, the sphenoid sinus, the foramen magnum (the opening at the base of the skull that the spinal cord passes through), the petrous temporal ridge, and the inner portions of the sphenoid wings at the base of the skull. (wikipedia.org)
  • Linear skull fractures are breaks in the bone that transverse the full thickness of the skull from the outer to inner table. (wikipedia.org)
  • Linear skull fractures are usually of little clinical significance unless they parallel in close proximity or transverse a suture, or they involve a venous sinus groove or vascular channel. (wikipedia.org)
  • In young children, although rare, the possibility exists of developing a growing skull fracture especially if the fracture occurs in the parietal bone. (wikipedia.org)
  • vomer
  • The vomer bone lies below and to the back (posteroinferiorly), and partially forms the choanal opening into the nasopharynx, (the upper portion of the pharynx that is continuous with the nasal passages). (wikipedia.org)
  • The nasal septum is composed of the quadrangular cartilage, the vomer bone (the perpendicular plate of the ethmoid bone), aspects of the premaxilla, and the palatine bones. (wikipedia.org)
  • pterygoid notch pterygoid fossa scaphoid fossa pterygoid hamulus pterygoid canal pterygospinous process sella turcica The sphenoid articulates with the frontal, parietal, ethmoid, temporal, zygomatic, palatine, vomer, and occipital bones and helps to connect the neurocranium to the facial skeleton. (wikipedia.org)
  • inferior
  • Aegyptopithecus zeuxis shares characteristics with haplorrhines such as a fused mandibular and frontal symphyses, postorbital closure, and superior and inferior transverse tori. (wikipedia.org)
  • coronary sinus
  • coronary sinus the dilated terminal portion of the great cardiac vein, receiving blood from other veins draining the heart muscle and emptying into the right atrium. (thefreedictionary.com)
  • lacrimal
  • Above and to the side (superolaterally), the paired nasal bones connect to the lacrimal bones, and below and to the side (inferolaterally), they attach to the ascending processes of the maxilla (upper jaw). (wikipedia.org)
  • marrow
  • Radiographically, the skeletal response to marrow proliferation consists of expansion of the medulla, thinning of cortical bone, and resorption of cancellous bone, which results in a generalized loss of bone density. (medscape.com)
  • New bone forms in response to marrow proliferation beneath the periosteum. (medscape.com)
  • Characteristically, ethmoidal sinuses are not involved, a factor attributable to the absence of red marrow in the sinus walls. (medscape.com)
  • The substance in bones that produces blood cells is the bone marrow. (reference.com)
  • These bones are composed of two thin layers of compact bone enclosing between them a variable quantity of cancellous bone, which is the location of red bone marrow. (wikipedia.org)
  • Since flat bones are usually thinner than the long bones, they only have red bone marrow, rather than both red and yellow bone marrow (yellow bone marrow being made up of mostly fat). (wikipedia.org)
  • The bone marrow fills the space in the ring of osteoblasts, and eventually fills the bony matrix. (wikipedia.org)
  • ostium
  • The results of experimental studies suggest that the natural ventilation-rate of a sinus with a single sinus ostium (opening), is extremely slow. (wikipedia.org)
  • The pressure differentials are directed to the center of the sinuses producing mucosal edema, transudation, and mucosal-or submucosal-hematoma, leading to further occlusion of the sinus ostium. (wikipedia.org)
  • The magnitude of the pressure difference needed to produce a barotrauma probably shows great individual variation and is related to the size of the sinus ostium and the rate of ambient pressure change. (wikipedia.org)
  • Fractures
  • Depressed fractures are usually comminuted, with broken portions of bone displaced inward-and may require surgical intervention to repair underlying tissue damage. (wikipedia.org)
  • temporal
  • A skullcap with a fragment of the left temporal bone, a fragment of the right scapula, a right clavicle, both humerus (the right side complete), a complete right radius, fragments of right and left forearm bones, five ribs, an almost complete left half of the pelvis and both femora - were completely preserved. (wikipedia.org)
  • meninges
  • verification needed] The confusion occurs in part because migraine involves activation of the trigeminal nerves, which innervate both the sinus region and the meninges surrounding the brain. (wikipedia.org)
  • cranialization
  • With more dramatic displacements, sinus exploration will be required to determine the required level of cranialization, obliteration, and reparation to the dura. (wikipedia.org)
  • ventilation
  • Such limited ventilation may be protective for the sinus, as it would help prevent drying of its mucosal surface and maintain a near-sterile environment with high carbon dioxide concentrations and minimal pathogen access. (wikipedia.org)