0 a round or V-shaped hollow in an organ or body part
1 in a graph of the blood pressure in the aorta, a place where the curve goes slightly downwards and quickly up again just before the aortic valve closes
The tibia has only a weak cnemial crest, separated from its outer condyle by a deep narrow groove, the "incisura tibialis".
Mesial temporal lobe structures such as the uncus, the parahippocampal gyrus and the hippocampal formation, are also intimately related to the incisura.
It is separated from the apex of the temporal lobe by a slight fissure called the incisura temporalis.
Kernohans notch is a groove in the cerebral peduncle that may be caused by this displacement of the brainstem against the incisura of the tentorium.
