Microdissection of the cadaveric human inferior neurovascular bundle showed that the inferior alveolar nerve after its origin from the mandibular division forms what can only be described as a plexus. The main trunk of the inferior alveolar nerve exhibits a branching structure reminiscent of the brachial plexus of the upper limb. This plexus-like nature is compounded by delicate interweaving of the inferior alveolar artery. Study of external carotid angiograms showed a general decrease in size of the inferior alveolar artery with increase in age.