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Multiple Choice
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1

The myelin sheath is a protective coating around the
A)dendrite.
B)spinal cord.
C)axon.
D)cerebral cortex.
2

A deficiency of which neurotransmitter causes Parkinson's disease?
A)dopamine
B)serotonin
C)endorphin
D)acetylcholine
3

______________ neurons transmit information from the perimeter of the body to the central nervous system.
A)Central
B)Sensory
C)Motor
D)Somatic
4

John touches a stove and immediately withdraws his hand. Why?
A)A reflex is at work.
B)The parasympathetic division of the autonomic nervous system is activated.
C)The somatic division of the nervous system is in control.
D)The sympathetic division of the autonomic nervous system is activated.
5

Which of the following brain-scanning techniques uses a computer to construct an image of the brain by combining thousands of separate X rays?
A)magnetic resonance imaging (MRI)
B)electroencephalogram (EEG)
C)computerized axial tomography (CAT)
D)positron emission tomography (PET)
6

The endocrine system is a(n) ______________ communication network that sends messages throughout the nervous system via the bloodstream.
A)chemical
B)photo
C)neural
D)electrical
7

The corpus callosum connects the
A)brain and spinal cord.
B)right and left hemispheres.
C)frontal and parietal lobes.
D)motor area and sensory area.
8

Which of the following parts of the brain are found in the central core?
A)cerebral cortex
B)sensory area
C)motor area
D)reticular formation
9

Some estimates suggest that there are as many as one ______________ neurons involved in behavior.
A)trillion
B)billion
C)thousand
D)million
10

The ______________ are the part of the neuron that receives messages from other neurons.
A)terminal buttons
B)dendrites
C)cell bodies
D)axons
11

The autonomic nerves are
A)located in the spinal cord.
B)part of the central nervous system.
C)part of the peripheral nervous system.
D)voluntary.
12

The pituitary gland affects
A)emotion.
B)energy levels.
C)sexual urges.
D)growth.
13

After her stroke, Abigail felt numb on the right side of her body. What area of her brain was most likely damaged?
A)the left hemisphere
B)the right hemisphere
C)the cerebellum
D)the central core
14

Which area of the human body is most sensitive?
A)ears
B)fingers
C)legs
D)arms
15

Ralph is having difficulty with his speech. Which area of his brain is most likely to be impaired?
A)central core area
B)sensory area
C)association area
D)medulla





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