Now I traced some delicate nervous filament from the spinal column of the amphioxus to the cerebral hemisphere of the mammifer.
Gyrus, jī′rus, n. one of the rounded edges into which the surface of the cerebral hemisphere is divided by the fissures or sulci.
cerebral hemisphere n.
Either of the two symmetrical halves of the cerebrum, as divided by the longitudinal cerebral fissure.
|cerebral hemisphere |
Either of the two symmetrical halves of the cerebrum, designated right and left. In mammals, the cerebral hemispheres are connected by the corpus callosum, a transverse band of nerve fibers.