Question

the primary function of the brain is:
a. to ensure the optimal functioning of the body with the exception of skeletal muscle
b. to control essential functions only
c. to control speech, special senses and cognitive thinking only
d. as the command centre of the body regulating all functions

the primary function of the spinal cord is:
a. to function as an extension of the brain should damage to the brain occur.
b. to transfer neural signals from the brain to the rest of the body
c. to speed up neural signals
d. to control all the organs that only function with local nerve input

Explanation:

Analyze the primary function of the brain

The brain acts as the central command center of the body. It receives sensory input, processes information, and coordinates both voluntary and involuntary responses, thereby regulating all bodily functions. Options containing "only" or excluding skeletal muscle are too restrictive.

Analyze the primary function of the spinal cord

The spinal cord is the main pathway connecting the brain to the peripheral nervous system. Its primary role is to transmit sensory signals from the body up to the brain, and motor commands from the brain down to the rest of the body.

Answer:

Question 1

• a. to ensure the optimal functioning of the body with the exception of skeletal muscle
• b. to control essential functions only
• c. to control speech, special senses and cognitive thinking only
• d. as the command centre of the body regulating all functions (Correct answer)

Question 2

• a. to function as an extension of the brain should damage to the brain occur.
• b. to transfer neural signals from the brain to the rest of the body (Correct answer)
• c. to speed up neural signals
• d. to control all the organs that only function with local nerve input