It is an attachment for the levator labii superioris muscle.

And Peter's levator labii superioris muscle pulled his top lip into a sneer.

In humans, snarling uses the levator labii superioris alaeque nasi muscle.

Her levator labii superioris pulls her upper lip up into a sneer and flares her nostrils.

The levator labii superioris pulls his top lip up to his nostrils, and his face goes down into his notebook.

The levator labii superioris (or quadratus labii superioris) is a muscle of the human body used in facial expression.

It is located between the levator anguli oris muscle inferiorly and the levator labii superioris muscle superiorly.

Grace's face, her levator labii superioris muscle, the sneer muscle, pulls her face in tight around her nose, and she says, "It's blood.

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 elevated by the levator labii superioris alaeque nasi muscle and receives sensory innervation by the maxillary division of the trigeminal nerve.

When you pull up your upper lip-when you show that one top tooth, the one the museum guard broke-this is your levator labii superioris muscle at work.

It is a triangular mass with one vertex at the buccinators, one at the levator labii superioris alaeque nasi, and one at the orbicularis oris.

It originates from malar bone and continues with orbicularis oculi on the lateral face of the Levator labii superioris and then inserts into the outer part of the upper lip.

It is contributed to by the following muscles: orbicularis oris, buccinator, levator anguli oris, depressor anguli oris, zygomaticus major, risorius, platysma, levator labii superioris.

It runs along the infraorbital groove and canal with the infraorbital nerve, and emerges on the face through the infraorbital foramen, beneath the infraorbital head of the levator labii superioris muscle.

It is raised by the Levator labii superioris and is connected to the lower lip by the thin lining of the lip itself, which can be seen by opening your mouth wide in front of a mirror.