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
History of anatomy human physiology and anatomy, as anyone was welcome to witness the spectacle. Participants "were fascinated by corporeal display, by the body undergoing dissection". Most professors did not do the dissections themselves. Instead they sat in seats above the bodies while hired hands did the cutting. Students and observers would be placed around the table in a circular, stadium-like arena and listen as professors explained the various anatomical parts. As anatomy theaters gained popularity throughout the 16th century, protocols were adjusted to account for the disruptions of students. Students moved beyond simply being eager to participate, and began stealing and vandalizing