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
Sociopolitical issues of anatomy in America in the 19th century US similarly sought to set the medical profession apart from alternative medicine and other rivals through increased anatomical studies. As a result, the demand for corpses by medical students for dissection studies grew, which in turn propelled widespread medical grave-robbing, social strife and legislative changes to provide anatomists with legal supplies of cadavers. Medical grave robbery prompted anatomy riots in nearly every medical institution and drove changes in legislatures. The increase in importance of anatomy in medical studies also increased society's interest in the human body, which prompted the popularization of anatomy museums. The societal funerary obligation to respect the