Arent's Signature: Directions: Read the following item and choose the letter of the correct answer. Write your answers in your body
a. brain
d. bones
1. It is referred to as the river of life.
a. blood vessels b. heart
c. capillaries
2. It is considered as the functional unit of the nervous system.
b. neurons
c. muscles
3. It controls and coordinates the activities of the whole nervous system.
a. central nervous system b. sympathetic nervous system
c. nervous system d. brain
4. It is a system that controls other parts of the body.
a. nervous system b. circulatory system
c. digestive system
5. It is the primary organ of the central nervous system contained within the skull.
a. brain
b. axon
c. dendrites
d. cell body
d. respiratory system
Direct​