In 1862 English explorer John Hanning Speke journeyed from Africaâs east coast to find what he considered to be the source, where the river exits Lake Victoria in present-day Uganda.
Nerve Pain. Common types of nerve pain you may experience in the mouth can come from your taste and sensory nerves (burning mouth syndrome), inferior alveolar nerve located in the lower jaw, skin of the chin and lower lip, or in your lingual nerve, which descends to the tongue and under the mucous membrane of the mouth.erve Pain. Common types of nerve pain you may experience in the mouth can come from your taste and sensory nerves (burning mouth syndrome), inferior alveolar nerve located in the lower jaw, skin of the chin and lower lip, or in your lingual nerve, which descends to the tongue and under the mucous membrane of the mouth.
The third branch of the trigeminal nerve covers the sensation of the lowest part of the face, the lower jaw and the floor of the oral cavity. Furthermore it supplies all jaw muscles with motoric branches including the muscles of mastication. One important branch innervating the tongue is the lingual nerve. It contains the first neurons responsible for the proprioception of the jaw and intraocular muscles, temporomandibular joints, the teeth and the upper and lower jaw. 2  The principal nucleus of trigeminal nerve is located in the dorsolateral pontine tegmentum. 3  Its main task is the tactile sensation.