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Antitragicus

Other Terms: Musculus antitragicus, Muscle de l'antitragus

Muscle parts

None

Latin name

Musculus antitragicus

Latin muscle parts

None

Group

Branchial arch muscle – second arch (Auricular muscle)

Etymology

In English, this muscle’s name is the muscle that is opposite the goat. The prefix anti- is Latin for opposed to, or opposite. The term tragicus (for tragus), which is the name for the cartilage flap the covers the opening to the ear, is from the Greek word tragos for “goat.” The early anatomists thought that the hairs that often grow out of the tragus resembled the scraggly hairs on the chin of the goat.

Origin

Lateral surface of the antitragus

Insertion

Tail of the helix and the antihelix

Action

Adjusts the shape of the auricle by pulling the antitragus and tail of the helix towards each other, helping to increase the opening into the external acoustic meatus. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree.

Nerve supply

Facial nerve (Cranial nerve VII)

Blood supply

Anterior auricular branches of the superficial temporal artery and auricular branch of the posterior auricular artery

Latin

Musculus antitragicus

French

Muscle de l'antitragus

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