Question 1

Jacob has just gotten an interview for a job he really wants.With his excitement,his heartbeat increases,his blood pressure rises,and he begins to perspire.Which nervous system is responsible for these physiological changes?

Accepted Answer

A)   autonomic
B)   sympathetic
C)   somatic
D)   parasympathetic

Question 2

The slowdown of neural communication in multiple sclerosis results from the degeneration of the

Accepted Answer

A)   amygdala.
B)   endorphins.
C)   myelin sheath.
D)   pituitary gland.

Question 3

Sir Charles Sherrington observed that impulses took an unexpectedly long time to travel a neural pathway.His observation provided evidence for the existence of

Accepted Answer

A)   antagonists.
B)   synaptic gaps.
C)   interneurons.
D)   neural networks.

Question 4

The depolarization of a neural membrane creates a(n)

Accepted Answer

A)   action potential.
B)   myelin sheath.
C)   neural network.
D)   interneuron.

Question 5

Although Ron has no genital sensations,he is capable of an erection if his genitals are stimulated.Ron's experience is most indicative of a(n)

Accepted Answer

A)   morphine antagonist.
B)   severed spinal cord.
C)   synaptic gap.
D)   all-or-none response.

Question 6

The part of the peripheral nervous system that controls the movements of your mouth and jaws as you eat is called the

Accepted Answer

A)   somatic nervous system.
B)   sympathetic nervous system.
C)   endocrine system.
D)   autonomic nervous system.

Question 7

Madison is experiencing symptoms of paralysis after eating food contaminated by botulin.Her paralysis is most likely to be relieved by a drug that functions as a(n)

Accepted Answer

A)   ACh agonist.
B)   serotonin agonist.
C)   ACh antagonist.
D)   serotonin antagonist.

Question 8

When insulted by a classmate,Jeremy experienced a sudden surge of arousal.Jeremy's reaction best illustrates the nature of

Accepted Answer

A)   the pain reflex.
B)   an all-or-none response.
C)   a refractory period.
D)   the fight-or-flight response.

Question 9

The two divisions of the peripheral nervous system are the

Accepted Answer

A)   brain and spinal cord.
B)   sympathetic nervous system and parasympathetic nervous system.
C)   endocrine system and circulatory system.
D)   somatic nervous system and the autonomic nervous system.

Question 10

The vast majority of neurons in the body's information system are

Accepted Answer

A)   glial cells.
B)   interneurons.
C)   motor neurons.
D)   sensory neurons.

Question 11

After ingesting a poisonous substance,Alex experienced a temporary muscular paralysis.The poison most likely interfered with the normal functioning of the neurotransmitter

Accepted Answer

A)   serotonin.
B)   dopamine.
C)   acetylcholine.
D)   norepinephrine.

Question 12

The release of epinephrine into the bloodstream is most likely to

Accepted Answer

A)   lower blood sugar.
B)   lower blood pressure.
C)   stimulate digestion.
D)   accelerate heartbeat.

Question 13

A drug molecule that increases a neurotransmitter's action is called a(n)

Accepted Answer

A)   antagonist.
B)   endorphin.
C)   agonist.
D)   steroid.

Question 14

Mathematical computations by a computer are faster than your quickest mathematical computations because the top speed of a neural impulse is about ________ times slower than the speed of electricity through the wired circuitry in a computer.

Accepted Answer

A)   3 hundred
B)   3 thousand
C)   3 hundred thousand
D)   3 million

Question 15

As the action potential moves speedily down the axon,sodium/potassium pumps finish restoring the first section of the axon to its resting potential by transporting ________ out of the neuron.

Accepted Answer

A)   positively charged ions
B)   ACh agonists
C)   negatively charged ions
D)   ACh antagonists

Question 16

Neurotransmitters are released from knob-like terminals at the end of the

Accepted Answer

A)   dendrites.
B)   cell body.
C)   axon.
D)   myelin sheath.

Question 17

Opiate drugs ________ mood and ________ pain.

Accepted Answer

A)   depress;increase
B)   elevate;decrease
C)   depress;decrease
D)   elevate;increase

Question 18

The parasympathetic nervous system is to the sympathetic nervous system as ________ is to ________.

Accepted Answer

A)   pupil dilation;pupil contraction
B)   raising blood pressure;lowering blood pressure
C)   inhibition of digestion;stimulation of digestion
D)   lowering of blood sugar;raising of blood sugar

Question 19

The strengthening of the brain's synaptic connections facilitates the formation of

Accepted Answer

A)   interneurons.
B)   endorphins.
C)   neural networks.
D)   glial cells.

Question 20

A car controlled by a computerized navigational guidance system is likely to respond more rapidly to sudden obstructions in its path than a car controlled by a human driver.This is primarily due to the fact that

Accepted Answer

A)   a neuron's reaction is an all-or-none response.
B)   an axon branches into junctions with many other neurons.
C)   the fatty tissue layer that insulates axons slows the transmission of neural impulses.
D)   the speed of neural impulses is much slower than the speed of electricity through a wire.

Exam 4: Neural and Hormonal Systems

Mathematical computations by a computer are faster than your quickest mathematical computations because the top speed of a neural impulse is about ________ times slower than the speed of electricity through the wired circuitry in a computer.

Correct AnswerverifiedShow Answer

Madison is experiencing symptoms of paralysis after eating food contaminated by botulin.Her paralysis is most likely to be relieved by a drug that functions as a(n)

Correct AnswerverifiedShow Answer

The two divisions of the peripheral nervous system are the

Correct AnswerverifiedShow Answer

A drug molecule that increases a neurotransmitter's action is called a(n)

Correct AnswerverifiedShow Answer

The depolarization of a neural membrane creates a(n)

Correct AnswerverifiedShow Answer

The part of the peripheral nervous system that controls the movements of your mouth and jaws as you eat is called the

Correct AnswerverifiedShow Answer

Jacob has just gotten an interview for a job he really wants.With his excitement,his heartbeat increases,his blood pressure rises,and he begins to perspire.Which nervous system is responsible for these physiological changes?

Correct AnswerverifiedShow Answer

As the action potential moves speedily down the axon,sodium/potassium pumps finish restoring the first section of the axon to its resting potential by transporting ________ out of the neuron.

Correct AnswerverifiedShow Answer

Opiate drugs ________ mood and ________ pain.

Correct AnswerverifiedShow Answer

The release of epinephrine into the bloodstream is most likely to

Correct AnswerverifiedShow Answer

Sir Charles Sherrington observed that impulses took an unexpectedly long time to travel a neural pathway.His observation provided evidence for the existence of

Correct AnswerverifiedShow Answer

The parasympathetic nervous system is to the sympathetic nervous system as ________ is to ________.

Correct AnswerverifiedShow Answer

Neurotransmitters are released from knob-like terminals at the end of the

Correct AnswerverifiedShow Answer

The strengthening of the brain's synaptic connections facilitates the formation of

Correct AnswerverifiedShow Answer

When insulted by a classmate,Jeremy experienced a sudden surge of arousal.Jeremy's reaction best illustrates the nature of

Correct AnswerverifiedShow Answer

A car controlled by a computerized navigational guidance system is likely to respond more rapidly to sudden obstructions in its path than a car controlled by a human driver.This is primarily due to the fact that

Correct AnswerverifiedShow Answer

Although Ron has no genital sensations,he is capable of an erection if his genitals are stimulated.Ron's experience is most indicative of a(n)

Correct AnswerverifiedShow Answer

The vast majority of neurons in the body's information system are

Correct AnswerverifiedShow Answer

The slowdown of neural communication in multiple sclerosis results from the degeneration of the

Correct AnswerverifiedShow Answer

After ingesting a poisonous substance,Alex experienced a temporary muscular paralysis.The poison most likely interfered with the normal functioning of the neurotransmitter

Correct AnswerverifiedShow Answer

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Opiate drugs mood and pain.

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The parasympathetic nervous system is to the sympathetic nervous system as is to .

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