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.
Mouth cancer, also known as oral cancer, is where a tumour develops on the surface of the tongue, mouth, lips or gums. Tumours can also occur in the salivary glands, tonsils and the pharynx (the part of the throat from your mouth to your windpipe) but these are less common. Symptoms of mouth cancer include: 1  red or white patches on the lining of your mouth or tongue. 2  ulcers. 3  a lump.