The Probert Encyclopaedia of Medicine

LEVATOR LABII SUPERIORIS ALAEQUE NASI

The levator labii superious alaeque nasi is a thin triangular muscle located on the side of the nose. It originates from the root of the nasal process of the maxilla bone and extends towards the inner edge of the occular orbit (orbit of the eye). It is innervated by the facial nerve (VII cranial nerve) and supplied by the facial artery. This muscle draws the upper lip and nose upward and is most often used when expressing disdain or contempt.
Research Levator Labii Superioris Alaeque Nasi