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 the video teaching aid uses simple language and high quality images. The official website claims: ""Each minute of the finished product took twelve hours to produce: five in creating the script, five in making the shots, and two in post-production."" The British Medical Journal wrote that "Robert Acland’s video atlas series represents a powerful force against .. perceived dumbing down and has set about reinvigorating the subject through its crystal clear presentation 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.