légion du vent est désormais compatible avec l'extension FastNews.kiwi disponible pour votre navigateur. Avec cette extension, vérifiez s'il y a des nouveaux sujets sur ce forum en un clic depuis n'importe quelle page !Cliquez ici pour en savoir plus.
65288a64fe DEVELOPMENT OF MAXILLA: PALATE Genesis of cleft palate Delay in shelf elevation Disturbance in mechanism of shelf elevation Failure of shelves to contact due to lack of growth Failure to displace the tongue during closure [ Pierre robin syndrome ] Failure to fuse after contact as epithelium does not break down Rupture after fusion Defective merging DEVELOPMENT OF MAXILLA: The formation of the palate involves the coordinated outgrowth, elevation and midline fusion of bilateral shelves leading to the separation of the oral and nasal cavities. OBrien* Mechanisms of Development 124 (2007) 746761 CLINICAL IMPLICATION: add PowerPoint Presentation: Derivatives of Pharyngeal arches ARCHES NERVE MUSCLES SKELETAL ARTERY I Maxillary arch Trigeminal MOM Mandible, Maxilla,incus , malleus Maxilary II Hyoid Facial Muscles of facial expression Stapes, styloid process,lesser cornu & upper part of body of hyoid, Stapedial (embryonic) Corticotympanic (adult) III Glossopharyngeal Stylopharyngeus Gr. Triger produced by a build up mucopolysaccharides . Frontal process is well marked Body consists of a little more than the alveolar process The tooth sockets reaching to the floor of orbit Maxillary sinus is a mere furrow on the lateral wall of the nose. The prevomerine center ( paraseptal center ): It begins at about 8-9 WIU along the outer alveolar wall. The formation of these nasal pits divides the fronto -nasal process into two parts: The medial nasal process The lateral nasal process PowerPoint Presentation: The two mandibular processes grow medially to & fuse to form the lower lip & lower jaw.
begins anteriorly during the 9 th wk and is completed posteriorly by the 12 th wk. The buccal side can be resorptive or depository depending on the direction of gonial flares. Fronto maxillary suture. - palatal component : that forms the triangular primary palate. As palate descends inferiorly. Each of these arches give rise to muscles,connective tissue, vasculature, skletal components & neural components of the future face. The first arch is called MANDIBULAR ARCH and second arch is called HYOID ARCH. Send to Blogs and Networks Processing . The foramen and canal gradually shift upwards. PowerPoint Presentation: Periosteal resorption on the labial bony cortex , deposition on the alveolar surface of the labial cortex, resorption on the alveolar surface of the lingual cortex, deposition on the lingual side of the lingual cortex.