Otic vesicle 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 epithelium, giving rise to the vestibular system and auditory components of the inner ear. During the earlier stages of embryogenesis, the otic placode invaginates to produce the otic cup. Thereafter, the otic cup closes off, creating the otic vesicle. Once formed, the otic vesicle will reside next to the neural tube medially, and on
History of beliefs about the human body as imbalances of the 4 fluids of the body. Aristotle was unable to dissect humans but did so to many animals and was a early founder of comparative anatomy. Aristotle did contend quasi spiritual manifestations of the body principally through sexual distinctions. He wrote that the sex of humans: “is determined by the male principle already contained in the semen. If this is not strong enough, then the opposite must necessarily come into existence, and the opposite of man is woman.” Aristotle clearly superimposed man as the more important figure in men and women but presents an almost Qi like