AnswersBiology - SC3209 ICThe Central Nervous System

The Central Nervous System Answers

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The main function of the central nervous system is to

A
process information from stimuli and respond.
B
process information from responses and sense stimuli.
C
produce stimuli and cause reactions in the body.
D
sense reactions and cause stimuli in the body.
4

Which portion of the brain is located closest to the spinal cord?

A
hypothalamus
B
cerebrum
C
cerebellum
D
brain stem
5

Which is least likely a description of the central nervous system (CNS)?

A
The CNS processes information that is received from the stimuli receptors.
B
The CNS is found in the central area of our upper body, close to the heart.
C
The CNS sends out information so that the body can react appropriately to stimuli.
D
The CNS is composed of the brain and the spinal cord.
6

Why are functional MRIs useful to doctors?

A
They can ease pain in various areas of the body.
B
They can reduce tumors in patients' brain and spinal cord.
C
They show which parts of the brain are involved in specific activities.
D
They stimulate specific parts of the brain and look for a response.
7

Which structure is at work when the body deals with reflex actions?

A
meninges
B
brain stem
C
vertebral column
D
spinal cord
8

The spinal cord is made up of

A
the pons and the medulla.
B
the brain and the brain stem.
C
white and gray matter.
D
gray matter only.
10

What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?

A
The CNS involves the brain and spinal cord, and the PNS involves the body nerves.
B
The CNS involves the body nerves, and the PNS involves the brain and spinal cord.
C
The CNS involves sensory neurons, and the PNS involves motor neurons.
D
The CNS involves motor neurons, and the PNS involves sensory neurons.

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