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Stylohyoid muscle

 
Dental Dictionary: stylohyoid muscle
 

n

Suprahyoid muscle that extends from the styloid process to the hyoid bone and is used for mastication and swallowing. See also deglutition; mastication; muscles, hyoid.

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Medical Dictionary: stylohyoid muscle
 

n.

A muscle with origin from the styloid process of the temporal bone, with insertion into the hyoid bone by two slips on either side of the intermediate tendon of the digastric muscle, with nerve supply from the facial nerve, and whose action elevates the hyoid bone.

 
Wikipedia: Stylohyoid muscle
Top
Stylohyoid
The stylohyoid among the triangles of the neck.
Muscles of the neck. Anterior view. Stylohyoid muscle in purple
Latin musculus stylohyoideus
Gray's subject #112 392
Origin styloid process (temporal)
Insertion    greater cornu of hyoid bone
Artery
Nerve facial nerve (CN VII)
Actions Elevate the hyoid during swallowing

The Stylohyoid muscle is a slender muscle, lying in front of, and above the posterior belly of the digastric muscle. It shares this muscle's innervation by the facial nerve.

Contents

Origin and insertion

It arises from the back and lateral surface of the styloid process of the temporal bone, near the base; and, passing downward and forward, is inserted into the body of the hyoid bone, at its junction with the greater cornu, and just above the Omohyoideus. It thus belongs to the group of suprahyoid muscles.

It is perforated, near its insertion, by the intermediate tendon of the Digastricus.

Variations

It may be absent or doubled, lie beneath the carotid artery, or be inserted into the Omohyoideus, Thyreohyoideus, or Mylohyoideus.

Additional images

See also

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.


 
 

 

Copyrights:

Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.  Read more
Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Stylohyoid muscle" Read more