Development of The Ear
Development of The Ear
Development of The Ear
OF
THE EAR
Department of Anatomy
Section of Embryology
AY 2008-2009
DEVELOPMENT OF THE EAR
3 Parts of the ear and its
ANLAGE
6th wks
8th wks
7th wks
Development of Otocyst Cochlear Duct
DEVELOPMENT OF SCALA
VESTIBULI & TYMPANI
DEVELOPMENT OF THE
ORGAN OF CORTI
DEVELOPMENT OF THE
SEMICIRCULAR CANAL
DEVELOPMENT OF THE ORGAN OF
CORTI & SEMICIRCULAR CANALS
INNER EAR
Oticplacode( 3rd week of life)
Ventral Dorsal
Sacule Utricle
Cochlear duct Semicircular canals
Endolymphatic duct
INTERNAL EAR
Cochlear Duct
Start to develop at six week until the 8th week
of life
Tubular outgrowth from lower pole of
saccule
Forms the organ of Corti
INNER EAR
Semicircular canal
Developed at 6th week of life
Flattened outpocketings of the utricle
Skin Tags
CONGENITAL ANOMALIES
Have A
Good and
Blessed Day!