pontomedullary groove

pon·to·med·ul·lar·y groove

SYN medullopontine sulcus [TA].
Farlex Partner Medical Dictionary © Farlex 2012

pon·to·med·ul·lar·y groove

(pon'to-med'ŭ-lar-ē grūv)
The transverse groove on the ventral aspect of the brainstem that demarcates the pons from the medulla oblongata; from its bottom the sixth, seventh, and eighth cranial nerves emerge.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012