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Temporalis
Other Terms:
Temporal,
Temple,
Temporal muscle,
Musculus temporalis,
Muscle temporal
Muscle parts
None
Latin name
Musculus temporalis
Latin muscle parts
None
Group
Branchial arch muscle – first arch (Masticatory muscle)
Etymology
In English, this muscle’s name is the time muscle. The word temporalis comes from the Latin word tempus meaning “time.” The muscle covers the temporal bone, or time bone, which received its name because the hair of the head covering this bone is often the first hair to turn gray during the aging process. Therefore, this region is the first to show the ravages of time.
Origin
Temporal fossa below the inferior temporal line and the temporal fascia
Insertion
All surfaces, except the lateral, of the coronoid process and the anterior margin of the mandibular ramus
Action
Elevates the mandible; posterior horizontal fibers retract the mandible, assists with side-to-side movements.
Nerve supply
Mandibular branch of trigeminal nerve (Cranial nerve V)
Blood supply
The superficial surface of the muscle is supplied by the middle temporal branch of the transverse facial artery. Entering the deep surface of the muscle are the deep temporal arteries that arise from the second part of the maxillary artery.
Latin
Musculus temporalis
French
Muscle temporal
