| Stylohyoid | |
|---|---|
The stylohyoid among the triangles of the neck. | |
Muscles of the neck. Anterior view. Stylohyoid muscle in purple | |
| Details | |
| Origin | Styloid process (temporal) |
| Insertion | Greater cornu ofhyoid bone |
| Nerve | Facial nerve (CN VII) |
| Actions | Elevate the hyoid during swallowing |
| Identifiers | |
| Latin | musculus stylohyoideus |
| TA98 | A04.2.03.005 |
| TA2 | 2164 |
| FMA | 9625 |
| Anatomical terms of muscle | |
Thestylohyoid muscle is one of thesuprahyoid muscles.[1] Its originates from the styloid process of thetemporal bone; it inserts onto hyoid bone. It is innervated by a branch of thefacial nerve. It acts to draw thehyoid bone upwards and backwards.
The stylohyoid is aslendermuscle.[2] It is directed inferoanteriorly from its origin towards its insertion.[3]
It is perforated near its insertion by the intermediatetendon of thedigastric muscle.[3]
The muscle arises from the posterior surface of thetemporal styloid process; it arises near the base of the process. It arises by a small tendon of origin.[3]
The muscle inserts onto thebody of hyoid bone at the junction of the body andgreater cornu.[3]
It passes anterior to the intermediate tendon of thedigastric muscle and is inserted immediately superior to that of the superior belly ofomohyoid muscle.[3]
The stylohyoid muscle receives arterial supply branches of thefacial artery,posterior auricular artery, andoccipital artery.[3]
The stylohyoid muscle receives motor innervation from thestylohyoid branch offacial nerve (CN VII).[3]
The muscle is situatedanterosuperior to the posterior belly of thedigastric muscle.[2]
It may be absent or doubled. It may be situated medial to thecarotid artery. It may insert suprahyoid muscles of infrahyoid muscles.[3]
The stylohyoid muscle elevates and retracts the hyoid bone (i.e. draws it superiorly and posteriorly).[3]
This sectionneeds expansion. You can help byadding missing information.(January 2018) |
The stylohyoid muscle elongates the floor of the mouth.[3] It initiates a swallowing.[citation needed]
This article incorporates text in thepublic domain frompage 392 of the 20th edition ofGray's Anatomy(1918)
{{citation}}: CS1 maint: work parameter with ISBN (link){{citation}}: CS1 maint: work parameter with ISBN (link){{cite book}}: CS1 maint: location missing publisher (link)Anatomy figure: 34:02-04 at Human Anatomy Online, SUNY Downstate Medical Center