Question 1

The chemical messengers of the endocrine system are called

Accepted Answer

A)   neurotransmitters.
B)   hormones.
C)   agonists.
D)   genes. B

Question 2

When Mr. Valdez thought his 1-year-old daughter had fallen down the stairs, his heartbeat accelerated, his blood pressure rose, and he began to perspire heavily. Mr. Valdez's state of arousal was activated by his ________ nervous system.

Accepted Answer

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

Question 3

In the process of beginning an action potential, the threshold refers to

Accepted Answer

A)   neuron extensions that conduct messages toward the cell body.
B)   a minimum intensity of excitatory minus inhibitory stimulation.
C)   neuron extensions that send messages to other neurons.
D)   the junction between a sending and receiving neuron.

Question 4

The knee-jerk reflex requires the activity of the

Accepted Answer

A)   central nervous system.
B)   autonomic nervous system.
C)   sympathetic nervous system.
D)   parasympathetic nervous system.

Question 5

Which part of a neuron is often encased by a fatty myelin sheath?

Accepted Answer

A)   axon
B)   synaptic gap
C)   cell body
D)   dendrite A

Question 6

Endorphins are most directly involved in the control of

Accepted Answer

A)   body temperature.
B)   physical pain.
C)   muscle contraction.
D)   attention.

Question 7

The brain's information-processing capacities are most clearly enhanced by

Accepted Answer

A)   neural networks.
B)   ACh agonists.
C)   endorphins.
D)   reflexes.

Question 8

Cortisol is a stress hormone released by the

Accepted Answer

A)   pituitary gland.
B)   thyroid gland.
C)   pancreas.
D)   adrenal glands.

Question 9

The nineteenth-century theory that bumps on the skull reveal a person's abilities and traits is called

Accepted Answer

A)   evolutionary psychology.
B)   behavior genetics.
C)   biological psychology.
D)   phrenology.

Question 10

Paralysis triggered by botulin poisoning is most likely to be relieved by a(n)

Accepted Answer

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

Question 11

Group cohesion, pair bonding, and social trust are promoted by pituitary gland secretions of

Accepted Answer

A)   cortisol.
B)   epinephrine.
C)   oxytocin.
D)   dopamine.

Question 12

Information is carried from the body's tissues and sensory receptors to the central nervous system by

Accepted Answer

A)   interneurons.
B)   sensory neurons.
C)   motor neurons.
D)   endocrine glands.

Question 13

When the transmission of ACh is blocked, the result is

Accepted Answer

A)   depression.
B)   aggression.
C)   muscular paralysis.
D)   schizophrenia.

Question 14

The body's chemical communication system that is much slower than the nervous system is called the

Accepted Answer

A)   somatic system.
B)   parasympathetic system.
C)   autonomic system.
D)   endocrine system.

Question 15

The slowdown of neural communication in multiple sclerosis involves a degeneration of the

Accepted Answer

A)   neural network.
B)   cell body.
C)   myelin sheath.
D)   pituitary gland.

Question 16

Motor neurons are an important part of the

Accepted Answer

A)   central nervous system.
B)   circulatory system.
C)   peripheral nervous system.
D)   endocrine system. C

Question 17

Sensory neurons transmit signals to

Accepted Answer

A)   glands.
B)   tissues.
C)   motor neurons.
D)   interneurons.

Question 18

An all-or-none response pattern is characteristic of the

Accepted Answer

A)   activation of either the sympathetic or the parasympathetic system.
B)   release of endorphins into the central nervous system.
C)   release of hormones into the bloodstream.
D)   initiation of neural impulses.

Question 19

Neurotransmitter receptor sites are primarily located on the

Accepted Answer

A)   dendrites.
B)   myelin sheath.
C)   cell bodies.
D)   axon terminals.

Question 20

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.

Exam 4: A: Neural and Hormonal Systems

The chemical messengers of the endocrine system are called

Correct AnswerverifiedB

When Mr. Valdez thought his 1-year-old daughter had fallen down the stairs, his heartbeat accelerated, his blood pressure rose, and he began to perspire heavily. Mr. Valdez's state of arousal was activated by his ________ nervous system.

Correct AnswerverifiedShow Answer

In the process of beginning an action potential, the threshold refers to

Correct AnswerverifiedShow Answer

The knee-jerk reflex requires the activity of the

Correct AnswerverifiedShow Answer

Which part of a neuron is often encased by a fatty myelin sheath?

Correct AnswerverifiedA

Endorphins are most directly involved in the control of

Correct AnswerverifiedShow Answer

The brain's information-processing capacities are most clearly enhanced by

Correct AnswerverifiedShow Answer

Cortisol is a stress hormone released by the

Correct AnswerverifiedShow Answer

The nineteenth-century theory that bumps on the skull reveal a person's abilities and traits is called

Correct AnswerverifiedShow Answer

Paralysis triggered by botulin poisoning is most likely to be relieved by a(n)

Correct AnswerverifiedShow Answer

Group cohesion, pair bonding, and social trust are promoted by pituitary gland secretions of

Correct AnswerverifiedShow Answer

Information is carried from the body's tissues and sensory receptors to the central nervous system by

Correct AnswerverifiedShow Answer

When the transmission of ACh is blocked, the result is

Correct AnswerverifiedShow Answer

The body's chemical communication system that is much slower than the nervous system is called the

Correct AnswerverifiedShow Answer

The slowdown of neural communication in multiple sclerosis involves a degeneration of the

Correct AnswerverifiedShow Answer

Motor neurons are an important part of the

Correct AnswerverifiedC

Sensory neurons transmit signals to

Correct AnswerverifiedShow Answer

An all-or-none response pattern is characteristic of the

Correct AnswerverifiedShow Answer

Neurotransmitter receptor sites are primarily located on the

Correct AnswerverifiedShow Answer

The release of epinephrine into the bloodstream is most likely to

Correct AnswerverifiedShow Answer

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C

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