Temporalis muscle
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| Temporalis muscle | ||
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| The Temporalis; the zygomatic arch and Masseter have been removed. | ||
| Latin | musculus temporalis | |
| Gray's | subject #109 386 | |
| Origin: | It arises from the temporal lines on the parietal bone of the skull. | |
| Insertion: | It inserts into the coronoid process of the mandible. | |
| Blood: | ||
| Nerve: | third (mandibular) branch of the trigeminal nerve. | |
| Action: | elevation and retraction of mandible. | |
| Dorlands/Elsevier | m_22/12551069 | |
The temporalis muscle is one of the muscles of mastication.
Contents |
[edit] Structure
It arises from the temporal fossa and the deep part of temporal fascia. It inserts onto the coronoid process of the mandible.
The temporalis muscle is covered by the temporal fascia, also known as the temporal aponeurosis.
The muscle can be felt if one places their fingers on their temples (on the sides of their head, just behind the eyebrows), while clenching and unclenching their teeth.
[edit] Innervation
As with the other muscles of mastication, control of the temporalis muscle comes from the third (mandibular) branch of the trigeminal nerve. Specifically, the temporalis is innervated by the deep temporal nerves.
[edit] Actions
Contraction of the temporalis muscle elevates the mandible. The somewhat horizontal fibers of the posterior part of the muscle retract the mandible.
[edit] Additional images
 Muscles of head and neck |
[edit] External links
- LUC temp
- SUNY Labs 27:04-0100 - "Infratemporal Fossa: The Temporalis Muscle"
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