Conscious behavior requires arousal, or wakefulness, which is controlled by the

Question

a. cerebral cortex. c. reticular activating system (RAS).
b. hypothalamus. d. limbic system.

Answer 1

C
Conscious behavior requires arousal, or wakefulness, which is controlled by the reticular activating system (RAS). The RAS is involved with arousal and consciousness and functions to maintain wakefulness and alertness. The cerebral cortex, or outermost layer of the cerebrum, contains gray matter and is involved in higher cognitive functioning, memory storage and recall, conscious understanding of sensation, vision, hearing, and motor function. The hypothalamus is important in body temperature regulation, pituitary hormone control, and autonomic nervous system responses. The limbic system, which lies in the inner midportion of the brain near the base, is a mediator of emotions and behavior.