Match the concept with the correct section of the nervous system.

_________Central nervous system

A. Consists of the brain and spinal cord.
B. Responsible for sending sensory messages to the CNS and sending motor messages to muscles and glands .
C. Responsible for voluntary control: sense receptors send messages to the CNS and impulses travel from the CNS to effectors (muscles).
D. Responsible for involuntary control: controls glandular secret (enzymes and hormones) and the function of smooth and cardiac muscles.
E. Activated in emergencies and in times of stress.
F. Activated when the body is calm, at rest, and digesting a meal.