A) nuclei
B) peripheral centers
C) roots
D) ganglia
E) All of the answers are correct.

A) brain only
B) spinal cord only
C) nerves only
D) brain and spinal cord
E) nerves and muscles

A) seat of higher functions, such as intelligence, memory, learning, and emotions
B) receives sensory input; coordinates sensory input and motor output
C) regulates smooth muscle, cardiac muscle, and glandular activities
D) integrating and processing data
E) All of the answers are correct.