The levator labii superioris (or quadratus labii superioris) is a muscle of the human body used in facial expression. It is a broad sheet, the origin of which extends from the side of the nose to the zygomatic bone.

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 has the longest name of any muscle in an animal.

The nasalis (compressor naris) is a sphincter-like muscle of the nose whose function is to compress the nasal cartilage.