Suprahyoid muscles
| Suprahyoid muscles | |
|---|---|
 Muscles of the neck. Anterior view. Hyoid bone is white horizontal line near top. Infrahyoid muscles are below hyoid, while Suprahyoid muscles are labeled above. | |
| Details | |
| Latin | Musculi suprahyoidei |
| Identifiers | |
| Gray's | p.391 |
| Dorlands /Elsevier | m_22/12551034 |
| TA | A04.2.03.001 |
| FMA | 71301 |
| Anatomical terms of muscle | |
The term suprahyoid refers to the region above (superior to) the hyoid bone in the neck. The suprahyoid muscles include digastric, stylohyoid, geniohyoid, and mylohyoid. They are all branchiomeric, with the exception of the geniohyoid muscle.
Function
These four muscles have different actions, but in general assist in elevating the hyoid bone and widening the esophagus during swallowing.
| Muscle | Origin | Insertion | Innervation |
|---|---|---|---|
| Digastric (anterior belly) | Digastric fossa of Mandible | Intermediate Tendon | Mylohyoid nerve - branch of CN V3 (Mandibular division of Trigeminal nerve) |
| Digastric (posterior belly) | Mastoid process | Intermediate Tendon | Facial nerve |
| Geniohyoid | Inferior mental spine of Symphysis menti | Hyoid | C1 |
| Stylohyoid | Temporal styloid process | Hyoid | Facial nerve |
| Mylohyoid | Mylohyoid line of mandible | Hyoid | Mylohyoid nerve - branch of CN V3 (Mandibular division of Trigeminal nerve) |
See also
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