What are the roles of the fifth and seventh cranial nerves?

Updated: Jun 14, 2019
  • Author: Danette C Taylor, DO, MS, FACN; Chief Editor: Selim R Benbadis, MD  more...
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Answer

In 1550, Fallopius noted the narrow foramen in the temporal bone through which a part of the seventh cranial nerve (facial nerve) passes; this feature is now sometimes called the fallopian canal or the facial canal. In 1828, Charles Bell made the distinction between the fifth and seventh cranial nerves; he noted that the seventh nerve was involved mainly in the motor function of the face and that the fifth nerve primarily conducted sensation from the face.


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