Hyoglossus | |
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![]() Extrinsic muscles of the tongue. Left side. (Hyoglossus visible at center.) | |
Muscles of the neck. Anterior view. Hyoglossal muscle in purple | |
Details | |
Origin | Hyoid |
Insertion | Side of the tongue |
Nerve | Hypoglossal (CN XII) |
Actions | Depresses and retracts the tongue |
Identifiers | |
Latin | musculus hyoglossus |
TA98 | A05.1.04.102 |
TA2 | 2118 |
FMA | 46691 |
Anatomical terms of muscle |
The hyoglossus is a thin and quadrilateral extrinsic muscle of the tongue. It originates from the hyoid bone; it inserts onto the side of the tongue. It is innervated by the hypoglossal nerve (cranial nerve XII). It acts to depress and retract the tongue.