periotic

[ per-ee-oh-tik, -ot-ik ]

Phonetic (Standard)IPA

adjective

, Anatomy.

surrounding the ear.
noting or pertaining to certain bones or bony elements that form or help to form a protective capsule for the internal ear.

periotic

/ ˌpɛrɪˈəʊtɪk; -ˈɒtɪk /

First recorded in 1865–70; peri- + otic

C19: from peri- + -otic, from Greek ous ear

Thus the auditory or periotic capsules press on the parachordals till they come to be more or less imbedded in them.

Of these the more posterior on each side represents the exoccipital and all three periotic bones.

Three bones, the epi-otic, opisthotic and pro-otic, together form the auditory or periotic capsule of each side.

The periotic has its inner surface marked by important depressions, while both inner and outer surfaces are pierced by foramina.

The tympanic is not fused to the periotic and has a small bulla not filled with cancellous bone.

April 25, 2024firkin

[fur-kin ]

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