inferior frontal sulcus
(redirected from sulcus frontalis inferior)in·fe·ri·or fron·tal sul·cus
[TA]a sagittal fissure on the lateral convex surface of each frontal lobe of the cerebrum demarcating the middle from the inferior frontal gyrus.
Synonym(s): sulcus frontalis inferior [TA]
inferior frontal sulcus
A groove running from front to back along the lateral surface of the frontal lobe of the brain, separating the middle frontal gyrus from the inferior frontal gyrus.
See also: sulcus