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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

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