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geniohyoid muscle

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Medical Dictionary

Main Entry: geniohyoid muscle
Function: noun
: a slender muscle that arises from the inferior mental spine on the inner side of the symphysis of the lower jaw, isinserted on the hyoid bone, and acts to raise the hyoid bone and draw it forward and to retract and depress the lower jaw called also geniohyoid
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

geniohyoid muscle ge·ni·o·hy·oid muscle (jē'nē-ō-hī'oid')
n.
A muscle with origin in the mandible, with insertion to the hyoid bone, with nerve supply from the first and second cervical nerve, and whose action draws the hyoid forward or depresses the jaw when the hyoid is fixed.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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