11. What serves as the central processing unit of the human body? *

a. Brain
b. Neuron
c. Spinal cord
d. Spinal column

12. What is the basic unit of the human body that collects and transmits impulses? *

a. Brain
b. Neuron
c. Spinal cord
d. Spinal column

13. What serves as the highways of impulses from sense organs to the brain and back to sense organs? *

a. Brain
b. Neuron
c. Spinal cord
d. Spinal column

14. What division of nervous system that consists of brain, spinal cord, and neuron? *

a. Autonomous nervous system
b. Central nervous system
c. Peripheral nervous system
d. Sympathetic nervous system

15. What division of nervous system that consists of all the neurons in human body aside from the brain and spinal cord? *

a. Autonomous nervous system
b. Central nervous system
c. Peripheral nervous system
d. Sympathetic nervous system​