Otic vesicle chick, invagination of the otic placode occurs passively due to the movements of the surrounding placode. The otic placode in zebrafish, on the other hand, occurs by cavitation; the ectodermal placode condenses and forms an ovoid ball directly below the embryo surface. Otic vesicle formation occurs later, during the 25-30 somite stage in mice. Otic vesicle Otic vesicle, or auditory vesicle, consists of either of the two sac-like invaginations formed and subsequently closed off during embryonic development. It is part of the neural ectoderm, which will develop into the membranous labyrinth of the inner ear. This labyrinth is a continuous
Acland's Video Atlas of Human Anatomy Acland's Video Atlas of Human Anatomy Acland's Video Atlas of Human Anatomy is a series of anatomy lessons on video presented by Robert D. Acland. Dr. Acland was a professor of surgery in the division of plastic and reconstructive surgery at the University of Louisville School of Medicine. The Atlas was originally released as a series of VHS tapes, published individually between 1995 and 2003. The series was re-released in 2003 on DVD as "Acland's DVD Atlas of Human Anatomy". The series uses unembalmed human specimens to illustrate anatomical structures. Intended for use by medical, dental and medical science students,