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Helicis Minor Muscle (Right)
Muscular System

Helicis Minor Muscle (Right)

Musculus minor helicis

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Quick Facts

Origin: Crus of helix.

Insertion: Crus of helix.

Action: Typically, no movement in humans.

Innervation: Temporal branches of facial nerve (CN VII).

Arterial Supply: Posterior auricular and superficial temporal arteries.

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Origin

The helicis minor muscle attaches to the crus of the helix on the lateral surface of the auricle.

Insertion

The helicis minor muscle is obliquely orientated and inserts into the apex of the crus of the helix on the lateral surface of the auricle.

Actions

It is believed that the helicis minor muscle contributes to the shape of the auricle to some degree.

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Outer Ear

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(The outer ear refers to the ear canal [external auditory meatus], the cartilaginous tube that runs from the ear itself [the pinna] to the tympanic membrane).

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