• The ethmoid is ossified in the cartilage of the nasal capsule by three centers: one for the perpendicular plate, and one for each labyrinth. (wikipedia.org)
  • A patient presented with an outcome fracture, and was treated by the reconstruction of the medial orbital wall using the nasal septum cartilage. (minervamedica.it)
  • The procedures for separating from the anterior nasal septum (ANS), suturing the connective tissue around the ANS [ 2 ] and nasal septum, and resecting the excess cartilage are complicated. (biomedcentral.com)
  • To overcome the drawbacks of the cutting and suture technique, we changed the cutting site, fixation position, and fixation method of the nasal septal cartilage. (biomedcentral.com)
  • The cartilage and bones of the nasal septum have been cut away so that the mucous membrane which covered the right side of the septum is exposed. (stanford.edu)
  • The medial wall, or nasal septum, is formed (from anteiror to posterior) by (1) the septal cartilage (destroyed in a dried skull), (2) the perpendicular plate of the ethmoid bone, and (3) the vomer (fig. 52-2 B). It is usually deviated to one side. (dartmouth.edu)
  • Crushed cartilage and bone from the ethmoidal plate of the septum are used as overlays over a remaining one sided depression at the sidewall of the nose. (caribbeanplasticsurgery.net)
  • The internal nasal valve is the area that is bounded by the caudal margin of the upper lateral cartilage laterally, the nasal septum medially, and the floor of the nose inferiorly. (rhinoplastyarchive.com)
  • The diagnosis is made by identifying the medialization of the upper lateral cartilage towards the septum on inspiration through the nose (dynamic collapse). (rhinoplastyarchive.com)
  • This usually improves with the Cottle maneuver, where the surgeon or the patient lateralizes the cheek with improved nasal breathing or with the modified Cottle maneuver where the surgeon lateralizes the upper lateral cartilage inside the nose with an instrument. (rhinoplastyarchive.com)
  • It was noted that the spreader graft increased the angle of the internal nasal valve as it displaced laterally the upper lateral cartilage (6). (rhinoplastyarchive.com)
  • The results included extended skin and lengthened alar cartilage, elongated framework, and lengthened and projected nasal tip. (jcosmetmed.org)
  • It can be the result of damaged nasal structure due to previous surgeries or infection, excessive scar tissues inside the nasal skin, or limited type of extractable graft cartilage being used up from previous operations. (jcosmetmed.org)
  • There are many challenges associated with the correction of contracted nose, for example: tight skin due to scar-capsule adhesion, scar tissues around the cartilage framework, techniques to lengthen the nasal tip (most post-surgical contracted nose has both structural problems such as weak upper and lower lateral cartilage, septum cartilage, leading to the difficulty in adding septal extension graft to caudal septum). (jcosmetmed.org)
  • The following criteria were evaluated to determine the degree of nasal contracture: prior operative history, skin mobility, capsule contracture, framework, nasal septum, degree of cephalic rotation of the nasal tip, alar & columella positions, and the amount of available cartilage graft used. (jcosmetmed.org)
  • The alar (lower lateral) cartilage is one of the structures that supports and gives the nasal tip shape. (herringplastic.com)
  • If the goal of a rhinoplasty procedure is to change the shape of the nasal tip, then the natural alar cartilage is (usually) altered. (herringplastic.com)
  • The complex anatomy of the alar (lower lateral) cartilage is so widely varied that many different approaches are needed and used to correct the aesthetic problems of the nasal tip. (herringplastic.com)
  • It is very important that enough alar cartilage is left in place during the rhinoplasty to adequately support the nasal tip. (herringplastic.com)
  • Two common areas from which cartilage grafts are obtained are the ear and the nasal septum. (herringplastic.com)
  • This cartilage graft is placed and secured in the nasal tip with very small sutures to create more definition on the nasal tip. (herringplastic.com)
  • The graft covers part of the columella and the medial aspect of the alar (lower lateral) cartilage. (herringplastic.com)
  • For evaluating nasal tip projection, we asked patients about their awareness of external nasal deformity. (biomedcentral.com)
  • All patients were unaware of external nasal deformity. (biomedcentral.com)
  • DESIGN: 3D images were ranked according to severity of nasal deformity by 7 cleft surgeons so that the mean rank could be used as the severity standard. (bvsalud.org)
  • Patients with cleft deformity have cosmetic problems and impaired nasal airflow as a result of distorted anatomy. (medscape.com)
  • Nasal rhinometry has demonstrated statistically significant findings of smaller airways in patients with cleft deformity when compared with patients without cleft deformity. (medscape.com)
  • Cleft lip nasal deformity offers a unique challenge to the reconstructive surgeon for many reasons. (medscape.com)
  • Historically, cleft lip nasal deformity has received less attention than primary lip repair or has been ignored altogether. (medscape.com)
  • Embryologic origin of cleft lip nasal deformity is not well understood. (medscape.com)
  • Curiously, classic nasal anomaly of patients with cleft lip may exist in absence of any cleft lip deformity owing to fetal derangements affecting only the nose. (medscape.com)
  • The alar is pulled up cephalically, and the nasal tip is lifted in the forehead direction resulting in the contracture and deformity of the nostrils. (jcosmetmed.org)
  • Surrounding the nasal cavities are air-containing mucosal lined sinuses, which include the frontal sinuses (superior anterior), ethmoid sinuses (superior), paired maxillary sinuses (lateral), and sphenoid sinuses (posterior). (nih.gov)
  • It regulates the nasal airflow by controlling the blood volume in the erectile tissue on the inferior turbinate and anterior septum. (nih.gov)
  • The cribriform plate forms the roof of the nasal cavity and also contributes to formation of the anterior cranial fossa, the ethmoidal labyrinth consists of a large mass on either side of the perpendicular plate, and the perpendicular plate forms the superior two-thirds of the nasal septum. (wikipedia.org)
  • Anterior nasal cartilages are palpable  Maxilla 1. (slideshare.net)
  • The MCAST can be suitable for correcting C-shaped caudal deviations without dislocating the caudal septum from the anterior nasal septum. (biomedcentral.com)
  • [ 1 ] It arises from the ICA (first branch of the ICA) as the ICA is emerging from the cavernous sinus on the medial side of the anterior clinoid process. (medscape.com)
  • The nasal cavity is related to the anterior and middle cranial fossae, orbit, and paranasal sinuses and is separated from the oral cavity by the hard palate. (dartmouth.edu)
  • A nasal speculum in a nostril is used in anterior rhinoscopy. (dartmouth.edu)
  • The term "ostiomeatal unit" represents the area on the lateral nasal wall (middle meatus) that receives drainage from the anterior and medial ethmoid cells, frontal sinus, and maxillary sinus. (epomedicine.com)
  • Preseptal and Orbital Cellulitis Preseptal cellulitis (periorbital cellulitis) is infection of the eyelid and surrounding skin anterior to the orbital septum. (msdmanuals.com)
  • The nasal tip, a prominent feature of the nose, extends longitudinally from the supratip to the columella breakpoint and transversely between the dome-defining points. (medscape.com)
  • These branches supply the skin of the medial cheek, lateral nose and upper lip, the mucosa of the anteroinferior nasal septum and oral mucosa of upper lip. (radiopaedia.org)
  • Saline nose drops and in severe cases a short course of intra-nasal steroids will hasten resolution. (entokey.com)
  • The nose begins as two epithelial thickenings known as the nasal placodes, which appear above the stomatodeum about the fourth week in utero. (entokey.com)
  • The two nostrils lead to the skin lined part of the nasal cavities called the vestibule of the nose. (ispub.com)
  • The external nose serves the cosmetic function by enhancing the personality and beauty of the individual, the nasal cavities act as a gateway to the respiratory tract were it filters and conditions the inspired air, it also serves as an organ for perception of smell. (ispub.com)
  • Gk, rhis, rhinos) includes the external nose on the face and the nasal cavity, which extends posteriorly from it. (dartmouth.edu)
  • Its medial wall, with which the inferior concha articulates, is very slender, and forms the lateral walls of both the middle and inferior meatuses of the nose. (co.ma)
  • The crooked nose is addressed by exposing the septum completely, which is deviated. (caribbeanplasticsurgery.net)
  • Treatment for correcting the internal nasal valve consist in repositioning the upper lateral cartilages or adding support to the lateral wall of the nose (1). (rhinoplastyarchive.com)
  • For humans and most primates , the philtrum survives only as a vestigial medial depression between the nose and upper lip. (nealesbookblog.com)
  • Thirteen patients (5%) who underwent short-nose correction required revision surgeries because of overcorrection or undercorrection of nasal length, poor tip projection, or inadequate correction of columellar retraction. (jcosmetmed.org)
  • If the nose has been partially blocked since childhood and the person is able to overcome nasal congestion by using the muscles that dilate the nostrils, repeated and excessive contraction of these muscles over time will make the lower part of the nose wider. (mediranco.com)
  • Rhinoplasty, also known as aesthetic nasal reconstruction or "nose job" to the general public is a plastic surgery procedure done to correct the size and shape of the nose. (riversideface.com)
  • In the preoperative office discussions Dr Scaccia will listen to your concerns and will perform an extensive internal nasal fiberoptic exam and external review of your nose. (riversideface.com)
  • The shape and appearance of the upper dorsum is determined by the nasal bones, which can be felt as the solid portion of the nose when you move your fingers down from the nasion. (crossplasticsurgery.com)
  • Running down the center of the nose, like a supporting wall in architecture, is the septum. (crossplasticsurgery.com)
  • Air containing mucosal lined sinuses surround the nasal cavity, which includes the frontal, paired maxillary, sphenoid, and ethmoid sinuses. (nih.gov)
  • Between the orbital plate and the nasal conchae are the ethmoidal sinuses or ethmoidal air cells, which are a variable number of small cavities in the lateral mass of the ethmoid. (wikipedia.org)
  • Fracture of the lamina papyracea, the lateral plate of the ethmoid labyrinth bone, permits communication between the nasal cavity and the orbit on the same side of the body through the inferomedial orbital wall, resulting in orbital emphysema. (wikipedia.org)
  • The medial wall was approached through the ethmoid cavity. (minervamedica.it)
  • 6 Cranial and facial Bones  Inferior nasal concha: surrounded anteriorly by maxillary bone  Lacrimal bone: visible between maxilla anteriorly and ethmoid posteriorly  Palatine bone 1. (slideshare.net)
  • The roof of the nasal cavity is formed by nasal cartilages and several bones, chiefly the nasal and frontal bones, the cribriform plate of the ethmoid (fig. 52-1 ), and the body of the sphenoid. (dartmouth.edu)
  • The lateral wall is uneven and complicated and is formed by several bones: nasal, maxilla, lacrimal and ethmoid, inferior nasal concha, perpendicular plate of palatine, and medial pterygoid plate of sphenoid (fig. 52-2 A). The lateral wall presents three or four medial projections termed nasal conchae, which overlie passages (meatuses). (dartmouth.edu)
  • The nasal cavities are narrow above, where they lie between the orbital cavities, from which they are separated by the cells within the labyrinth of the ethmoid. (co.ma)
  • At the level of the orbital floor the nasal cavities expand laterally, the middle meatus running longitudinally in the angle formed by the labyrinth of the ethmoid with the body of the maxilla, overhung by the middle concha. (co.ma)
  • Unites with temporal bone to form zygomatic arch  Nasal bones and cartilages 1. (slideshare.net)
  • Nasion: midline depression where nasal bones meet frontal bone 3. (slideshare.net)
  • The continuous free margin of the nasal bones and maxillae in a dried skull is termed the piriform aperture. (dartmouth.edu)
  • The nasal bones are cut and moved into a more midline position. (caribbeanplasticsurgery.net)
  • As your fingers move farther down, the hard nasal bones under the skin will transition to softer, compressible cartilages. (crossplasticsurgery.com)
  • The septum runs vertically down from the nasion, under the nasal bones, and down to the tip. (crossplasticsurgery.com)
  • These cavities directly communicate with the nasal cavity. (nih.gov)
  • This cavity is divided into two separate cavities by the septum and kept patent by a bone and cartilaginous framework. (nih.gov)
  • The nasal septum will then grow posteriorly to divide the two nasal cavities. (entokey.com)
  • The nasal cavity is divided into left and right cavities by nasal septum behind and columella in front. (ispub.com)
  • The sides of the arch below correspond to the medial surfaces of the alveolar processes and fall in line with the lateral walls of the nasal cavities superiorly. (co.ma)
  • At the median plane the sphenoidal sinuses are exposed, separated by a thin bony partition, on either side of which the openings by which they communicate with the nasal cavities are seen. (co.ma)
  • As far as breathing through the mouth is concerned, there is little activity by the respiratory muscles and the nerve terminations of the nasal cavities are not called into action. (bvsalud.org)
  • All of these paranasal sinuses, except the sphenoid, communicate with the nasal cavity via ducts that drain through ostia, which empty into spaces located on the lateral wall. (nih.gov)
  • The sphenoid sinus ostium is located on the anterosuperior surface of the sphenoid face, usually medial to the superior turbinate. (medscape.com)
  • Cribriform plate: forms narrow roof of nasal cavity  Sphenoid bone 1. (slideshare.net)
  • Each choana is bounded medially by the vomer, inferiorly by the horizontal plate of the palatine bone, laterally by the medial pterygoid plate, and superiorly by the body of the sphenoid bone (see figs. 42-12 and 42-13 ). (dartmouth.edu)
  • The artery then proceeds forward horizontally, beneath the lower border of the superior oblique muscle, and divides into 2 terminal branches, frontal and dorsal nasal. (medscape.com)
  • Formation of the palate is strictly correlated with the processes occurring at the cellular level as well as adhesion, fusion and subsequent degeneration of the epithelium between the medial surface of the plates as well as dorsal surface of the palate and lower ridge of the nasal septum and anteriorly formed primary palate. (eleonorefourniau.com)
  • The primordial hippocampus dorsal to the choroid fissure follows the same growth pattern lying first in the medial wall of the inferior horn, then in the floor. (ehd.org)
  • Greater and lesser palatine foramina (for palatine nerves and arteries) and posterior nasal spine Vomer 1. (slideshare.net)
  • It also captures the odor bearing particles and transmits them to the olfactory recesses, that are in the superior portion of the nasal cavity, just medial to the superior turbinates. (nih.gov)
  • Perpendicular plate: forms posterior part of lateral wall of nasal cavity 2. (slideshare.net)
  • Each nasal cavity is closed posteriorly by the thinned out posterior wall of the nasal sac, called the bucconasal membrane. (entokey.com)
  • The nasal cavity extends in an antero-posterior direction from the nostrils, or nares, to the choanae. (dartmouth.edu)
  • Posteriorly, the nasal cavity communicates with the nasopharynx, which in many respects may be regarded as the posterior portion of the cavity. (dartmouth.edu)
  • To perform a nasal intubation, it's important to remember that the passage from the nares to the posterior opening into the pharynx is horizontal. (airwayjedi.com)
  • The alar cartilages have been subdivided anatomically into the medial, middle, and lateral crura. (medscape.com)
  • The lateral crura determine the volume, size, and position of the nasal lobules. (medscape.com)
  • The conjoined medial crura form a pillar on which the nasal tip rests and is the primary component of the columella. (medscape.com)
  • The continuous supporting band of cartilaginous and fibrous tissue circumscribes the nasal lobule with connections between the medial and lateral crura and the nasal floor. (medscape.com)
  • The rim consists of the caudal septum, which is supported by the nasal spine of the maxilla, the medial and lateral crura, and the chain of 3-4 accessory cartilages. (medscape.com)
  • It is bounded by the nasal vestibule, caudal septum and medial crura of the alar cartilages medially, the nasal sill inferiorly and the alar rim laterally. (rhinoplastyarchive.com)
  • nasal vestibule, respiratory region, and olfactory region. (nih.gov)
  • Particles that get past the nasal vestibule then become trapped in the mucosa of the nasal cavity. (nih.gov)
  • It is convenient to divide the nasal cavity into a vestibule, a respiratory region, and an olfactory region. (dartmouth.edu)
  • Surgically manipulating the nasal tip to achieve predictable results is the most difficult feature of rhinoplasty. (medscape.com)
  • One who can control the nasal tip is said to be able to master rhinoplasty. (medscape.com)
  • Parameters evaluated in this study provides important data for forensic medicine, physical anthropometry data base and to guide surgeons in rhinoplasty, nasal reconstruction on adult Nigerian. (ispub.com)
  • Internal nasal valve collapse is common in patients that underwent reductive rhinoplasty (1), older patients with weakened cartilages and certain phenotypes with weak nasal cartilages (Asian, Mestizo, African American). (rhinoplastyarchive.com)
  • In 1984, Sheen described the use of spreader grafts to correct the internal nasal valve by widening the nasal middle vault after reduction rhinoplasty (6). (rhinoplastyarchive.com)
  • The broad nasal tip is commonly observed in patients seeking rhinoplasty. (herringplastic.com)
  • These vessels run medially and anastomose with the medial palpebral arteries, forming an arterial circle. (medscape.com)
  • The two inferior openings are the nostrils (or nares), bounded laterally by the ala and medially by the nasal septum. (dartmouth.edu)
  • The roof which corresponds to the cribriform plate is narrow, and lies between the septum medially and the labyrinth on either side. (co.ma)
  • CT disclosed an expansive mass in the left maxillary sinus, nasal fossas, left frontal sinus, and sphenoidal sinus that encroached on the orbit. (isciii.es)
  • MRI result: tumor mass with infiltration of the nasal septum, sphenoidal sinus, frontal sinus, maxillary sinus, and left orbit medial wall. (isciii.es)
  • The natural ostium of the maxillary sinus is located in the superior portion of the medial wall. (medscape.com)
  • 1. Maxillary sinus with the nasolacrimal duct just medial. (missionforvisionusa.org)
  • The cavity of the maxillary sinus lying to the lateral side of the nasal cavity is well seen. (co.ma)
  • The lesion expanded to the surrounding soft tissues of the face, the maxillary sinus, the nasal cavity and the ethmoidal cells. (scirp.org)
  • The lesion completely obliterated the right maxillary sinus and extended into the right nasal cavity, sparing the nasal septum. (scirp.org)
  • The nasal lobule contains the nasal tip and extends longitudinally from the lateral crural junction with the upper lateral cartilages to the columella breakpoint and transversely between the alar-lobule junction. (medscape.com)
  • The lowest part of the septum (the columella) is membranous and mobile. (dartmouth.edu)
  • In turn, nasal placodes develop into the medial and lateral processes, forming the columella and alae, respectively. (medscape.com)
  • The olfactory neuroepithelium is located at the upper area of each nasal chamber adjacent to the cribriform plate, superior nasal septum, and superior-lateral nasal wall. (medscape.com)
  • Patients with internal nasal valve collapse typically have a "pinched" appearance or medial collapse of the supra-alar region (1). (rhinoplastyarchive.com)
  • External nasal valve collapse is common in patients with narrow noses, over projecting nasal tip and thin alar sidewalls. (rhinoplastyarchive.com)
  • Similar surgical alterations of the alar (lower lateral) cartilages can also help in part to correct the "over projecting nasal tip. (herringplastic.com)
  • The alar cartilages are divided on both sides, which facilitates narrowing of the nasal tip. (herringplastic.com)
  • The amorphous (shapeless) nasal tip is treated with a combination of altering the alar (lower lateral) cartilages and a "tip graft. (herringplastic.com)
  • The site of valve collapse can be divided according to the localization of the lateral nasal wall collapse (1) in internal nasal valve collapse and external nasal valve collapse. (rhinoplastyarchive.com)
  • The external nasal valve is the area of the nostril margin where the nasal cavity begins. (rhinoplastyarchive.com)
  • The shape of the sinus is a pyramid, with the base along the nasal wall and the apex pointing laterally toward the zygoma. (medscape.com)
  • Here we see the optic canal (12 in the figure)which is of course medial to the tip superior orbital fissure and which we just capture more laterally. (missionforvisionusa.org)
  • The growth of the sinuses, nasal cavity, cheeks, maxilla, teeth, and generally the middle part of the face depends on adequate nasal breathing during childhood and adolescence. (mediranco.com)
  • In pre-Columbian figurines, cleft lip was sculpted accurately, but nasal appearance was depicted incorrectly as normal. (medscape.com)
  • love charm'), or medial cleft, is a vertical indentation in the middle area of the upper lip, common to many mammals, extending in humans from the nasal septum to the tubercle of the upper lip. (nealesbookblog.com)
  • sieve') is an unpaired bone in the skull that separates the nasal cavity from the brain. (wikipedia.org)
  • The right orbital roof shows bone defects at the rim and further dissection circumferentially of the orbit shows an unrepaired naso-orbito-ethmoidal (NOE) fracture with missing bone at the medial orbital wall. (caribbeanplasticsurgery.net)
  • To take the spring out a submucous resection is performed and the septum is disarticulated from its insertion into the bone of the palate. (caribbeanplasticsurgery.net)
  • Olfaction requires orthonasal or retronasal airflow to transport odor-bearing particles up to the olfactory epithelium located at the apex of the nasal cavity. (nih.gov)
  • The maxillary process, derived from the proximal half of the first arch, grows to meet and fuse with the nasal processes that have grown and moved in association with the olfactory placode. (medscape.com)
  • The placodes deepen to form olfactory pits which lie between the medial and lateral nasal processes. (entokey.com)
  • To stimulate the olfactory receptors, airborne molecules must pass through the nasal cavity with relatively turbulent air currents and contact the receptors. (medscape.com)
  • The cutting and suture technique is suitable for caudal septoplasty, but a batten graft is always necessary and bears the risk of nasal tip projection loss. (biomedcentral.com)
  • The remaining septum at is lower edge is supported by a batten graft. (caribbeanplasticsurgery.net)
  • The typical nasal tip graft shape is termed a "shield graft. (herringplastic.com)
  • Medial ethmoidal maxillectomy with orbital exenteration and reconstruction with temporal muscle flap was performed. (isciii.es)
  • After confirmation of OM on biopsy, the patient underwent an extended right radical en bloc maxillectomy with immediate reconstruction of the inferior orbital rim. (scirp.org)
  • Inadequate support for nasal tripod before surgery. (medscape.com)
  • Additionally, the nasal tip projection was measured by CT and compared before and after surgery. (biomedcentral.com)
  • Nasal tip hemangiomas carry a high risk for growth related deformities and is a usual indication for surgery. (csurgeries.com)
  • This is one of the reasons why the consensus statement of 2010 from the American Academy of Otolaryngology - Head and Neck Surgery concluded that the nasal valve compromise should be treated surgically in order to improve nasal airflow (3). (rhinoplastyarchive.com)
  • And let me add that given how rare nasal intubation is at my surgery center, it was perfectly reasonable that they did not have these two devices in stock. (airwayjedi.com)
  • Nostril type was assigned according to inclination of the medial longitudinal axis of the nostril following Topinard system. (ispub.com)
  • The facial and nasal measurements were carried out with the patients lying in supine position on an examination table, the inclination of the medial longitudinal axis of the nostril were measured with the patients head in recumbent position and with the mid facial plane in vertical position. (ispub.com)
  • The nasal cavity can be examined in vivo either through a nostril or through the pharynx. (dartmouth.edu)
  • superior and middle nasal conchae project inferomedially from lateral wall 2. (slideshare.net)
  • 2 3 Nostrils were classified into seven types according to the inclination of the medial longitudinal axis. (ispub.com)
  • The top and bottom points were marked on the skin of the nostrils and the inclination of line connecting the top and bottom points of the medial longitudinal axis were measured by placing the zero mark of the protractor on the point at the bottom of the nostrils while holding the protractor horizontal. (ispub.com)
  • Between 2005 and 2009, 11 (8 males, 3 females) consecutive patients with isolated medial orbital wall fractures were managed by authors (mean age 37.6 years, range 9-79 years). (minervamedica.it)
  • Lateral or cavernous sinus extension could lead to diplopia due to compression of the third, fourth, and sixth cranial nerve, with sixth nerve compression being the most prevalent because of its medial position in cavernous sinus. (researchsquare.com)
  • Remember that some nasal masses may have an intra-cranial origin, so high-quality imaging should be requested. (entokey.com)
  • In the transsphenoidal approach, tumors invading the CS through its medial wall are approached inferomedially following the direction of tumor growth, which spares the cranial nerves. (surgicalneurologyint.com)
  • The nasal cavity is the most cephalic part of the respiratory tract. (nih.gov)
  • Covered in respiratory epithelium and mucous cells, this is the most substantial part of the nasal cavity. (nih.gov)
  • He presented left exophthalmia and left nasal respiratory insufficiency in the physical examination. (isciii.es)
  • Each half has a roof, floor, and medial and lateral walls. (dartmouth.edu)
  • Frontonasal processes that migrate over the forehead constitute the nasal placodes. (medscape.com)
  • Illustration depicts fusion of the lateral nasal, medial nasal, and maxillary prominences to form the primary palate. (medscape.com)
  • The overall development of the palate involves the formation of the primary palate followed by the formation of the secondary palate.At approximately 30-37 days' gestational age (GA), the primary palate forms by the growth and fusion of the medial nasal, lateral nasal, and maxillary processes (see the image below). (medscape.com)