SPECIALTY-MS/MD/FRCS

Bhatia PG forensic medicine for your PG/FMGE/MCI preparations Ebook PDF download

Bhatia PG forensic medicine for your PG/FMGE/MCI preparations Ebook PDF download

Bhatia PG forensic medicine for your PG/FMGE/MCI preparations Ebook PDF download Start form in g in th e 4th week of developm  Develop as blocks separated by ph aryn geal clefts (form ed by ectoderm )
• In itially, 6 ph aryn geal arch es develop, but th e 5th regresses
• Arisin g from th e en doderm are com partm en ts called ph aryn geal pouch es th at  exten d toward th e ph aryn geal clefts, separated by ph aryn geal m em bran es.

• Help form 4 of th e 5 swellin gs (em bryon ic prim ordia) of th e face:
• 2 m an dibular processes (ph aryn geal arch )
• 2 m axillary processes (ph aryn geal arch )
• 1 fron ton asal prom in en ce
• Com posed of:
• Extern al surface–ectoderm
• In tern al surface–en doderm
• Cen tral part–lateral plate m esoderm , paraxial m esoderm , n eural crest
• Skeletal com pon en ts an d associated con n ective tissue develop from th e n eural  crest cells

• Muscular structures develop collectively from th e m esoderm
• Each arch is in n ervated by a cran ial n erve th at m igrates with th e m uscles

Bhatia PG forensic medicine for your PG/FMGE/MCI preparations Ebook PDF download

Tags

Related Articles

Leave a Reply

Your email address will not be published.

Close

Adblock Detected

Please consider supporting us by disabling your ad blocker