tentorium

ten·to·ri·um

[ten-tawr-ee-uhm, -tohr-]
noun, plural ten·to·ri·a [-tawr-ee-uh, -tohr-] .
1.
Anatomy. an extension of one of the membranes covering the cerebrum which, with the transverse fissure, separates the cerebrum from the cerebellum.
2.
Zoology. (of an insect) the internal skeleton of the head.

Origin:
1655–65; < Neo-Latin tentōrium, Latin: tent, equivalent to ten(dere) to extend, stretch + -tōrium -tory2

ten·to·ri·al, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Medical Dictionary

tentorium ten·to·ri·um (těn-tôr'ē-əm)
n. pl. ten·to·ri·a (-tôr'ē-ə)
A membranous cover or horizontal partition.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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00:10
Tentorium is always a great word to know.
So is facial nerve. Does it mean:
either one of the seventh pair of cranial nerves composed of motor fibers that control muscles of the face except those used in chewing
a muscular and cartilaginous structure lined with mucous membrane at the upper part of the trachea in humans, where the vocal cords are located
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