hypoglossal nerve(redirected from CN XII)
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Related to CN XII: CN IX
hypoglossal nerve the twelfth cranial nerve; its modality is purely motor, serving the intrinsic muscles of the tongue and other muscles beneath the tongue. See Appendix 3-5.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Either of the 12th pair of cranial nerves that innervate the muscles of the tongue.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
hypoglossal nervethe 12th CRANIAL NERVE of higher vertebrates, the motor nerve supplying the floor of the mouth and the tongue.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005