pontomedullary groove

Medical Dictionary

pontomedullary groove pon·to·med·ul·lar·y groove (pŏn'tō-měd'l-ěr'ē, -mə-dŭl'ə-rē)
n.
The transverse groove on the ventral aspect of the brainstem that demarcates the pons from the medulla oblongata and from which emerge the sixth, seventh, and eighth cranial nerves.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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