Incisive Branch of Inferior Alveolar Nerve (Left)
Ramus incisivus nervi alveolaris inferioris
Read moreQuick 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.
Related parts of the anatomy
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
The inferior alveolar nerve was dissected free and preserved (ameloblastoma cells do not necessarily penetrate the nerve unless gross involvement of the inferior alveolar canal is noticed, which can theoretically allow the tumor cells to penetrate the perineural tissue).
