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Incisive Branch of Inferior Alveolar Nerve (Left)
Nervous System

Incisive Branch of Inferior Alveolar Nerve (Left)

Ramus incisivus nervi alveolaris inferioris

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Quick Facts

Origin: Inferior alveolar nerve.

Course: Runs medially through the most anterior portion of the mandible to the midline.

Branches: None.

Supply: Conveys general sense fibers from the mandibular incisors and canines, as well as related periodontal membranes.

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Origin

The incisive branch of the inferior alveolar nerve originates as one of two terminal branches of the inferior alveolar nerve. As the inferior alveolar nerve splits deep to the mental foramen, it gives rise to the mental nerve which runs superficially, and the incisive branch which remains in the substance of the mandible. Some resources consider the incisive nerve to be merely the anterior continuation of the inferior alveolar nerve.

Its sensory fibers have cell bodies located in the trigeminal ganglion.

Course

The incisive branch of the inferior alveolar nerve runs medially through the most anterior portion of the mandible to reach the midline. Its fibers run in the incisive canal, periodically ascending through the alveolar bone of the anterior mandible to reach the roots of the mandibular incisors and canines, as well as surrounding tissues.

Branches

There are no named branches.

Supplied Structures

The incisive branch of the inferior alveolar nerve conveys general sense fibers from the mandibular incisors and canines, as well as the periodontal tissue.

Learn more about this topic from other Elsevier products

Inferior Alveolar Nerve

ScienceDirect image

The inferior alveolar nerve is the largest of the 3 branches of the mandibular division of the trigeminal nerve, which passes downward along with the inferior alveolar artery of the internal maxillary artery.

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