Labial nerve

Labial Nerve

Inferior alveolar nerve and its branches - labial nerve is a branch of the inferior alveolar nerve.

The Labial Nerve is a branch of the Inferior Alveolar Nerve, which itself is a branch of the Mandibular Nerve, the third division of the Trigeminal Nerve. It provides sensory innervation to the skin and mucous membrane of the lower lip and labial gingiva (gum) anterior to the canines.

Anatomy

The labial nerve branches off from the inferior alveolar nerve before it enters the Mandibular Foramen. It descends in the Mandibular Canal, below the Incisor Teeth, and then exits the canal to supply the skin and mucous membrane of the lower lip and labial gingiva.

Clinical Significance

Damage to the labial nerve can result in Numbness or Paresthesia of the lower lip and labial gingiva. This can occur due to trauma, surgical procedures in the area, or due to local anesthetic injections.

See Also

• Inferior Alveolar Nerve
• Mandibular Nerve
• Trigeminal Nerve