The complex network of tiny islands of gray matter in the brain, that upon receiving incoming sensory impulses responds by activating wakefulness in the cerebral cortex, is the
A)dentate nucleus.
B)reticular formation.
C)limbic system.
D)corpora quadrigemina.

Question

Quizplus · Accepted Answer

The network of tiny islands of gray matter that activates wakefulness in the cerebral cortex upon receiving sensory impulses is the reticular formation. The dentate nucleus is involved in motor control, the limbic system is involved in emotions and memory, and the corpora quadrigemina are involved in visual and auditory reflexes.

The Complex Network of Tiny Islands of Gray Matter in the Brain