Which term describes the valleys separating the convolutions on the surface of the cerebrum?
A) gyri
B) ventricles
C) synapse
D) sulci
D
Explanation: Sulci are the valleys separating the convolutions on the surface of the cerebrum. The gyri are the elevations on the surface of the cerebrum. The ventricles are cavities containing cerebrospinal fluid. The synapse is the point at which the axon of one neuron meets the dendrite of the next neuron.
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