Origin: Zygomatic bone
Insertion: Skin of the upper lip
Artery: Facial artery
Nerve: Facial nerve, buccal branch
Action: Elevates upper lip
The zygomaticus minor is a muscle of facial expression. 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 draws the upper lip backward, upward, and outward (used in making sad facial expressions). Like all muscles of facial expression, it is innervated by the facial nerve (CN VII).