otic placode

otic placode
otic placode n AUDITORY PLACODE

* * *

a thickened ectodermal plate located midway alongside the hindbrain in the early embryo, from which the internal ear ultimately develops. Called also auditory p.

Medical dictionary. 2011.

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  • Otic placode — Latin placoda otica Code TE E5.15.2.0.0.0.4 In embryology, the otic placode is a thickening of the ectoderm on the outer surface of a developing embryo from which the ear develops. The ear, including both the vestibular system and the auditory… …   Wikipedia

  • Otic pit — Section through the head of a human embryo, at the beginning of the fourth week, in the region of the hind brain. Latin fovea otica Gray s …   Wikipedia

  • Otic vesicle — Embryo between eighteen and twenty one days …   Wikipedia

  • otic pit — n AUDITORY PIT * * * a distinct depression appearing in each otic placode, marking the beginning of embryonic development of the internal ear. Called also auditory p. and otic depression …   Medical dictionary

  • Placode — A placode is an area of thickening in the embryonic epithelial layer where some organ or structure later develops. The term usually refers to cranial placodes, peripheral nervous system structures associated with the special senses and cranial… …   Wikipedia

  • placode — Local thickening in the embryonic ectoderm layer; the cells of the p. ordinarily constitute a primordial group from which a sense organ or ganglion develops. [G. plakodes, fr. plax, anything flat or broad, + eidos, like] auditory placodes SYN:… …   Medical dictionary

  • auditory placode — n either of the anterior lateral areas of ectoderm that invaginate and sink beneath the body surface to form the inner ear structures of vertebrate embryos called also otic placode * * * otic p …   Medical dictionary

  • auditory saucer — otic placode …   Medical dictionary

  • Embryology — 1 morula, 2 blastula 1 blastula, 2 gastrula with blastopor …   Wikipedia

  • Neurogenic placodes — Latin placodae neurogenicae Code TE E05.15.2.0.0.0.1 A neurogenic placode is an area of thickening in the embryonic epithelial layer where some organ or structure later develops. The term usually refers to cranial placodes, peripheral nervous… …   Wikipedia

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