Otic vesicle constricts to form the canalis reuniens. The central part of the otic vesicle represents the membranous vestibule, and is subdivided by a constriction into a smaller ventral part, the saccule, and a larger dorsal and posterior part, the utricle. The dorsal component of the inner ear also consists of what will become the semicircular canals. The utricle and saccule communicate with each other by means of a Y-shaped canal. The FGF, Bmp, Wnt and Pax genes are likely to be involved in otic induction. FGF and BMP signals help control patterning in the early otic vesicle. Fgf3 and Fgf10 are
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,