The gray matter on the outer surface of the cerebrum is called the ________.

A) cortex
B) pia mater
C) reticular formation
D) arbor vitae
E) cerebral medulla

Gray Matter

The region of the brain and spinal cord that is rich in nerve cell bodies and is darker than the surrounding white matter due to its higher neuronal density.

Cerebrum

The largest part of the brain, responsible for voluntary activities, sensation, thought, reasoning, and memory.

Cortex

The outer layer of the cerebrum in the brain, involved in higher brain functions such as thought and action.