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Temporoparietalis

Other Terms: Epicranius, Temporoparietal muscle, Musculus temporoparietalis, Muscle temporo-pariétal

Muscle parts

None

Latin name

Musculus epicranius – Musculus temporoparietalis

Latin muscle parts

None

Group

Branchial arch muscle – second arch (Facial muscle)

Etymology

In English this muscle’s name is the part of the muscle upon the skull on the time wall. Epicranius come from the Greek epi meaning “upon” and kranion meaning “head, or skull.” The temporoparietal part of this muscle derives its name from the Latin tempus meaning “time,” and the Latin paries meaning “wall.” The muscle covers the parietal bone, which forms the lateral wall of the cranium. It also 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

Fascia around the superior aspect of the auricle

Insertion

Anterolateral border of the epicranial aponeurosis

Action

Assist the frontal belly in drawing the epicranial aponeurosis towards the front of the cranium. Also help tense the fascia over the temporal region of the cranium and possibly assist the anterior and superior auricular muscles with movements of the auricle.

Nerve supply

Facial nerve (Cranial nerve VII)

Blood supply

Superficial temporal artery - parietal branch

Latin

Musculus temporoparietalis

French

Muscle temporo-pariétal

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