Superior Labial Nerve - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The superior labial nerve is a nerve of the face. It is a branch of the infraorbital nerve. It supplies sensation to the skin and mucosa of the upper lip. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Course The superior labial nerve arises from the infraorbital nerve (itself a branch of the maxillary division of the trigeminal nerve). It originates as several branches immediately distal to the infraorbital foramen. They descend behind the levator labii superioris muscle and pass into the upper lip – where they supply cutaneous sensation. The superior labial nerve communicates with fibres of the facial nerve through the infraorbital plexus. By TeachMeSeries Ltd (2026) Fig 1The course and branches of the infraorbital nerve Sensory Function The superior labial branches supply sensation to the skin and mucosa of the upper lip. Frequent questions What is the superior labial nerve? The superior labial nerve is a facial nerve branch that provides sensory innervation to the skin and mucosa of the upper lip. It originates from the infraorbital nerve, which is part of the maxillary division of the trigeminal nerve. What is the course of the superior labial nerve? The superior labial nerve arises from the infraorbital nerve just distal to the infraorbital foramen. It descends behind the levator labii superioris muscle before entering the upper lip to supply sensation. What does the superior labial nerve innervate? The superior labial nerve innervates the skin and mucosa of the upper lip, providing essential sensory feedback. This function is crucial for various activities, including facial expressions and oral functions. How does the superior labial nerve communicate with other nerves? The superior labial nerve communicates with the facial nerve via the infraorbital plexus. This connection allows for integrated sensory and motor functions in the facial region. What is the clinical relevance of the superior labial nerve? Understanding the superior labial nerve's anatomy is important for clinicians, particularly in facial surgeries or procedures involving the upper lip. Damage to this nerve can lead to sensory deficits in the upper lip area. Rate This Article