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 lingual nerve is located near the sides of the tongue (specifically below the lateral pterygoid muscle), and is responsible for its senses of taste and touch.The lingual nerve provides senses to the tongue's front two-thirds, as well as to the underside that surrounds it.It branches off the mandibular nerve and twists around the submandibular duct to reach the tongue.he lingual nerve provides senses to the tongue's front two-thirds, as well as to the underside that surrounds it. It branches off the mandibular nerve and twists around the submandibular duct to reach the tongue.