Pontomedullary groove

pontomedullary groove pon·to·med·ul·lar·y groove (pŏn’tō-měd’l-ěr’ē, -mə-dŭl’ə-rē)
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.


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