Lingual nerve

The lingual nerve ( " tongue nerve" ) is a branch of the mandibular nerve ( mandibular nerve ), which in turn is a branch of the fifth cranial nerve ( trigeminal nerve ) is. The lingual nerve is primarily responsible for the sensory innervation of the mucous membrane of the anterior two- third of the tongue. It consists usually of 1-3 fascicles.

Course

The hypoglossal nerve separates the ganglion from the mandibular nerve and extending below the lateral pterygoid muscle. Here lie the nerve parasympathetic and sensory nerve fibers from the tympanic string at ( chorda tympani ) and sympathetic fibers. The parasympathetic fibers are switched submandibular ganglion ( called with animals mandibular ganglion ). About this, originally VII of the cranial nerve (facial nerve ) derived fibers takes over the lingual nerve and the line of taste information from the anterior two- third of the tongue ( the posterior third of the tongue is the parasympathetic fibers of the glossopharyngeal gustatory supplied ) and the innervation of the lower salivary glands ( sublingual glands and submandibular gland ).

After attachment of the chorda tympani -lingual nerve runs between the medial pterygoid muscle and the ramus ( Ramus mandiblae ) to the tongue.

Disorders

For dental and surgical procedures in the mandible, especially by injection for local anesthesia can cause lesions of the lingual nerve, which are manifested in sensory disturbances in the anterior two-thirds of the lateral tongue border.