Muscles of Chewing and Swallowing
Muscles of Chewing and Swallowing
Muscles of Chewing and Swallowing
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Hyoid <strong>Muscles</strong> – Infrahyoid Group<br />
• fix hyoid bone from below…allowing suprahyoid muscles to<br />
open mouth<br />
• omohyoid – depresses hyoid after elevation<br />
• sternohyoid – depresses hyoid after elevation<br />
• thyrohyoid – depresses hyoid <strong>and</strong> elevates larynx<br />
• sternothyroid – depresses larynx after elevation<br />
Suprahyoid<br />
group<br />
Levator scapulae<br />
Infrahyoid<br />
group<br />
Sternocleidomastoid<br />
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.<br />
Digastric:<br />
Anterior belly<br />
Posterior belly<br />
Stylohyoid<br />
Mylohyoid<br />
Sternohyoid<br />
Omohyoid:<br />
Superior belly<br />
Inferior belly<br />
Superficial Deep<br />
(a) Anterior view<br />
Hyoid bone<br />
Common carotid artery<br />
Internal jugular vein<br />
Thyrohyoid<br />
Sternothyroid<br />
Clavicle<br />
Infrahyoid<br />
group<br />
Figure 10.10a<br />
10-5
Change language