Otic pit

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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
Precursor auditory plate
Gray's p.1029
Code TE E5.
Anatomical terminology

The auditory pit, also known as the otic pit, is the first rudiment of the internal ear. It appears shortly after that of the eye, in the form of a patch of thickened ectoderm, the auditory plate, over the region of the hind-brain. The auditory plate becomes depressed and converted into the auditory pit (or otic pit[1]).


  1. ^ hednk-010 — Embryo Images at University of North Carolina

This article incorporates text from a public domain edition of Gray's Anatomy.