Otic pit

Otic pit
Section through the head of a human embryo, at the beginning of the fourth week, in the region of the hind-brain.
Details
Precursor	auditory plate
Identifiers
Latin	fovea otica
Code	TE E5.15.2.0.0.0.5
*Anatomical terminology* [edit on Wikidata]

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]).

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

↑ hednk-010—Embryo Images at University of North Carolina

Development of the nervous system

Neurogenesis

General	neural development neurulation neurula Notochord Neuroectoderm Neural plate Neural fold Neural groove Neuropoiesis

Neural crest	Cranial neural crest Cardiac neural crest complex Truncal neural crest

Neural tube	Rostral neuropore Neuromere / Rhombomere Cephalic flexure Pontine flexure Alar plate Basal plate Glioblast Neuroblast Germinal matrix

Eye

Ear

Otic placode
- Otic pit
- Otic vesicle

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