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Levator Labii Superioris Muscle

ORIGIN AND INSERTION

Levator labii superioris originates from the infraorbital margin of maxilla and gets inserted to the skin of upper lip.

 

NERVE SUPPLY

This muscle derives its innervations from the facial nerve (7th cranial nerve) through the buccal branch.

 

BLOOD SUPPLY

Levator labii superioris is supplied arterially by the facial artery.

 

FUNCTIONS

It plays a very important role in facial expressions and contributes to it by many ways. It plays a role of the dilators of the mouth. It causes the elevation of upper lip, eversion of upper lip and deepens the nasolabial sulcus. It produces sad expression on deepening the nasolabial sulcus.


ORIGIN AND INSERTION

Levator labii superioris originates from the infraorbital margin of maxilla and gets inserted to the skin of upper lip.

 

NERVE SUPPLY

This muscle derives its innervations from the facial nerve (7th cranial nerve) through the buccal branch.

 

BLOOD SUPPLY

Levator labii superioris is supplied arterially by the facial artery.

 

FUNCTIONS

It plays a very important role in facial expressions and contributes to it by many ways. It plays a role of the dilators of the mouth. It causes the elevation of upper lip, eversion of upper lip and deepens the nasolabial sulcus. It produces sad expression on deepening the nasolabial sulcus.

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