Levator labii superioris alaeque nasi muscle

The levator labii superioris alaeque nasi muscle is, translated from Latin, the "lifter of the upper lip and of the wing of the nose". It is the muscle with the longest name in the human body.

Table of contents
1 Attachment
2 Action
3 Innervation

Attachment

The muscle is attached to the upper frontal process of the maxilla and inserts into the skin of the lateral part of the nostril and upper lip.

Action

It dilates the nostril and elevates the upper lip, enabling one to snarl.

Innervation

The muscle is innervated by the buccal branch of facial nerve, CN VII.

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