Deep temporal nerves
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The deep temporal nerves are typically two nerves (one anterior and one posterior) which arise from the mandibular nerve (CN V3) and provide motor innervation to the temporalis muscle.
| Deep temporal nerves | |
|---|---|
Mandibular division of the trigeminal nerve | |
| Details | |
| From | Anterior division of mandibular nerve |
| Innervates | Temporalis, temporomandibular joint |
| Identifiers | |
| Latin | nervi temporales profundi |
| TA98 | A14.2.01.071 |
| TA2 | 6254 |
| FMA | 53187 |
| Anatomical terms of neuroanatomy | |
Structure
Origin
They usually arise from (the anterior division of) the mandibular nerve (CN V3).[1][2]
Course
They pass superior to the superior border of the lateral pterygoid muscle.[1] They ascend to the temporal fossa[citation needed] and enter the deep surface of the temporalis muscle.[2]
Distribution
The deep temporal nerves provide motor innervation to the temporalis muscle. The deep temporal nerves also have articular branches which provide a minor contribution to the innervation of the temporomandibular joint.[3]
Variation
Number
There are usually two deep temporal nerves - the anterior deep temporal nerve and posterior deep temporal nerve. Occasionally, a third one is present - the middle deep temporal nerve.[2]
Origin
The anterior one may arise from the buccal nerve, and the posterior one may arise from the masseteric nerve.[2]
References
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