AnswersFL-2000310-Biology 1 Sem 2The 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.
11

Which factor is least likely to affect the results and interpretation of a functional MRI?

A
cancerous growth
B
prescription medication
C
a sinus infection
D
caffeinated soda
12

Zander is trying to determine the correct answer on a multiple-choice test. He has eliminated two of the four answer options because they do not fit the question, and now he is trying to recall what he knows about the question. Which two parts of Zander’s brain are working to perform these operations?

A
hippocampus and hypothalamus
B
hippocampus and cerebrum
C
cerebrum and cerebellum
D
cerebellum and hypothalamus
13

Humans are warm-blooded. They are able to maintain a constant body temperature despite changing environmental temperatures. Which part of the brain controls body temperature?

A
thalamus
B
hypothalamus
C
cerebellum
D
cerebrum

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