Term
| Digastric muscle |
two bellies (suprahyoid): |
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Definition
| anterior belly: intermediate tendon attached to the greater cornu |
symphisis on inner surface of mandible |
GENERAL: Swallowing- elevates hyoid bone and larynx. Also, depression of mandible in jaw opening. |
| posterior belly: mastoid notch |
intermediate tendon |
GENERAL: Swallowing- elevates hyoid bone and larynx. Also, depression of mandible in jaw opening. |
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Term
| Mylohyoid muscle (suprahyoid) |
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Definition
| mylohyoid line on inner surface of mandible |
r/l form floor of mouth. Posterior fibers insert on body of hyoid bone. |
elevate hyoid, depress mandible, form floor of mouth, elevate tongue |
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Term
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Definition
| Styloid process of temporal bone |
body of hyoid |
GENERAL: Swallowing- elevates hyoid bone and larynx. Also, depression of mandible in jaw opening. |
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Term
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Definition
| genial tubercles |
body of hyoid bone |
GENERAL: Swallowing- elevates hyoid bone and larynx. Also, depression of mandible in jaw opening. |
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Term
| Sternothyroid (infrahyoid) |
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Definition
| post surf of sternum. |
thyroid cartilage |
depresses thyroid and larynx |
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Term
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Definition
| post/sup surf of sternum near where it joins the clavicle |
body of hyoid |
GENERAL: Most depress the hyoid bone. |
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Term
| Omohyoid (infrahyoid) |
two bellies: |
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Definition
| inferior- scapula |
inferior- superior belly |
GENERAL: Most depress the hyoid bone. |
| superior- inferior belly |
superior- body of hyoid bone |
GENERAL: Most depress the hyoid bone. |
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Term
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Definition
| thyroid cartilage |
body and greater cornu of hyoid bone |
in addition to depressing the hyoid, it also elevates the thyroid bone and the larynx |
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