the area comprising the dark cells around vestibular organs was analysed with regard to embryologic development and maturation from the 13th gestational day ( otocyst stage ) ( cba/cba mouse ) to birth at the 21st gestational day when the organ reveals a morphologic maturation of inner ear gross structure and as also cytodifferentiation of vestibular hair cells .
C0013936
embryologic development
C0678723
maturation