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Multiple Choice
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1

A college student has just jumped out of the shower because he accidentally turned off the hot water. The sensation of cold and the student's response are transmitted by the
A)central nervous system
B)somatic nervous system
C)peripheral nervous system
D)autonomic nervous system
2

While walking home from a night class, a college student is frightened by a barking dog. After walking another block, she notices that her breathing and heart rate have slowed to normal levels. Which branch of her nervous system is responsible for these changes?
A)The sympathetic nervous system
B)The parasympathetic nervous system
C)The autonomic nervous system
D)The somatic nervous system
3

The function of axons is to
A)receive information from receptor cells or other neurons
B)produce substances the neuron needs for maintenance and growth
C)carry information away from the cell body
D)insulate the axon and speed neural transmission
4

The function of glial cells is
A)to transmit electrical impulses from muscle tissue to the brain.
B)to regulate sensory input from the external environment to the brain.
C)to provide support and nutrition for neurons.
D)to inhibit pain receptors in case of injury.
5

The all-or-none principle refers to the fact that
A)transmission across synapses is always chemical
B)inactive neurons are always electrically unstable
C)dendrites always receive messages from other neurons
D)when an electrical impulse in a neuron reaches a certain level, it fires completely
6

Which neurotransmitter primarily stimulates the firing of neurons?
A)GABA
B)acetylcholine
C)dopamine
D)norepinephrine
7

The "runner's high", a sense of pleasure and well-being experienced after physical exercise is attributable to
A)endorphins
B)dopamine
C)GABA
D)serotonin
8

Which of the following structures is not a part of the limbic system?
A)The amygdala
B)The medulla
C)The hippocampus
D)All of the above are part of the limbic system
9

The area of the brain through which most neural input from the cerebral cortex pass is the
A)thalamus
B)medulla
C)hypothalamus
D)cerebellum
10

After receiving a blow to the head in an accident at a construction site, a young man is having difficulty telling how far he is from objects and shifting his attention from person to person during conversations. The accident damaged his
A)parietal lobe
B)occipital lobe
C)temporal lobe
D)frontal lobe
11

The loosely connected network of structures under the cerebral cortex that is important in both memory and emotion is the
A)brain stem
B)limbic system
C)reticular formation
D)frontal lobe
12

A college student who suffered a head injury due to falling off a ladder has experienced difficulty performing higher mental functions like thinking and planning. The student has suffered an injury to the
A)cerebral cortex
B)thalamus
C)brain stem
D)reticular formation
13

The highest intellectual functions occur in the
A)association cortex
B)parietal lobe
C)brain stem
D)hypothalamus
14

A student who has heard a loud noise stands quickly, breathes rapidly, and is poised to run from the room. Hormones from which endocrine gland(s) have been secreted?
A)The testes
B)The parathyroid gland
C)The pituitary gland
D)The adrenal glands
15

The term______________is used to describe the complete set of instructions for making an organism.
A)chromosome
B)genome
C)polygenic inheritance
D)dominant-genes





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