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.
Numb Tongue or Numb Lip from Nerve Damage. A numb tongue can be the result of lingual nerve damage during dental treatment. The nerve for sensation to the tongue is called the lingual nerve. On the other hand, a numb lip will be the result of inferior alveolar nerve damage.It can feel like a numb mouth, although it affects just one side of the lower lip.In routine dental procedures, it is very unusual for a numb tongue or a numb lip to be totally permanent.n the other hand, a numb lip will be the result of inferior alveolar nerve damage. It can feel like a numb mouth, although it affects just one side of the lower lip. In routine dental procedures, it is very unusual for a numb tongue or a numb lip to be totally permanent.