Skip to Content

hypoglossal nerve [CN XII]


Definition: arises from an oblong nucleus in the medulla and emerges by several root filaments between the pyramid and the oliva via the preolivary groove; it passes through the hypoglossal canal, then courses downward and forward to supply the intrinsic and four of five extrinsic muscles of the tongue.

Synonym(s): nervus hypoglossus [CN XII]TA, twelfth cranial nerve [CN XII]

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.