Question 1

Neurons move material away from the soma by retrograde transport.

Accepted Answer

A) True 
 B)False

Question 2

Unipolar neurons have only a single process leading away from the soma.

Accepted Answer

A) True 
 B)False

Question 3

Opening of gates produces an .

Accepted Answer

A)  chloride; IPSP
B)  sodium; IPSP
C)  calcium; IPSP
D)  potassium; EPSP
E)  calcium and sodium; IPSPF) A) and C)
G) C) and D)

Question 4

The nervous system employs exclusively electrical means to send messages, whereas the endocrine system communicates by means of chemical messengers.

Accepted Answer

A) True 
 B)False

Question 5

Local potentials are , whereas action potentials are .

Accepted Answer

A)  irreversible; reversible
B)  self-propagating; local
C)  graded; all or none
D)  nondecremental; decremental
E)  produced by voltage-regulated channels; produced by gated channelsF) A) and D)
G) A) and E)

Question 6

The myelin sheath is formed by

Accepted Answer

A)  fibers.
B)  cells.
C)  macromolecules.
D)  polymers.
E)  organelles.F) C) and D)
G) A) and D)

Question 7

Which of the following will cause the plasma membrane to hyperpolarize when at its RMP?

Accepted Answer

A)  inflow of sodium
B)  inflow of potassium
C)  inflow of calcium
D)  inflow of chloride
E)  outflow of chlorideF) B) and C)
G) C) and D)

Question 8

All of these contribute to the cessation of the signal in a synaptic transmission except

Accepted Answer

A)  synaptic vesicles secrete neurotransmitter by exocytosis.
B)  neurotransmitter escapes from the synapse into the nearby extracellular fluid.
C)  neurotransmitters stop being released.
D)  the synaptic knob reabsorbs some neurotransmitters by endocytosis.
E)  enzymes in the postsynaptic cell break down some neurotransmitters.F) A) and E)
G) A) and D)

Question 9

Even though all action potentials are the same, the brain can differentiate a variety of stimuli by source and intensity.The mechanism by which the nervous system converts these action potentials into meaningful information is called neural

Accepted Answer

A)  recruitment.
B)  pooling.
C)  integration.
D)  facilitation.
E)  coding.F) A) and E)
G) A) and C)

Question 10

Some neurons are specialized to detect stimuli, whereas neurons send signals to the effectors of the nervous system.

Accepted Answer

A)  efferent; afferent
B)  afferent; efferent
C)  motor; sensory
D)  efferent; association
E)  afferent; associationF) A) and C)
G) A) and B)

Question 11

form myelin in the spinal cord.

Accepted Answer

A)  Schwann cells
B)  Astrocytes
C)  Satellite cells
D)  Oligodendrocytes
E)  MicrogliaF) C) and D)
G) B) and C)

Question 12

binds to ligand-regulated gates, and is the most common inhibitory neurotransmitter in the brain.

Accepted Answer

A)  γ-aminobutyric acid (GAB
A)  
B)  Noradrenaline
C)  Epinephrine
D)  Acetylcholine
E)  NorepinephrineF) A) and E)
G) B) and C)

Question 13

division carries signals to the smooth muscle in the large intestine.

Accepted Answer

A)  Visceral sensory
B)  Somatic sensory
C)  Visceral motor
D)  Somatic motor
E)  AfferentF) A) and C)
G) A) and B)

Question 14

Nerves are of the nervous system.

Accepted Answer

A)  organs
B)  tissues
C)  organ systems
D)  organelles
E)  cellsF) B) and D)
G) A) and E)

Question 15

Some antidepressant drugs act by inhibiting monoamine oxidase (MAO) , which is an enzyme

Accepted Answer

A)  that binds to chloride gates.
B)  that breaks down monoamines.
C)  that blocks sodium channels.
D)  that converts ATP to cyclic AMP.
E)  that degrades acetylcholine.F) C) and D)
G) C) and E)

Question 16

Any two EPSPs will override one IPSP.

Accepted Answer

A) True 
 B)False

Question 17

In the brain, neurons are more abundant than neuroglia.

Accepted Answer

A) True 
 B)False

Question 18

The autonomic nervous system is also called the

Accepted Answer

A)  visceral sensory division.
B)  somatic sensory division.
C)  visceral motor division.
D)  somatic motor division.
E)  central nervous system.F) None of the above
G) All of the above

Question 19

About 90% of the neurons in the nervous system are neurons.

Accepted Answer

A)  sensory
B)  motor
C)  afferent
D)  efferent
E)  associationF) A) and C)
G) B) and E)

Question 20

Most of the myelin sheath is composed of

Accepted Answer

A)  lipids.
B)  carbohydrates.
C)  glycoproteins.
D)  proteins.
E)  polysaccharides.F) D) and E)
G) A) and D)

Exam 12: Nervous Tissue

Most of the myelin sheath is composed of

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All of these contribute to the cessation of the signal in a synaptic transmission except

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Some antidepressant drugs act by inhibiting monoamine oxidase (MAO) , which is an enzyme

Correct AnswerverifiedShow Answer

division carries signals to the smooth muscle in the large intestine.

Correct AnswerverifiedShow Answer

Unipolar neurons have only a single process leading away from the soma.

Correct AnswerverifiedShow Answer

Nerves are of the nervous system.

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binds to ligand-regulated gates, and is the most common inhibitory neurotransmitter in the brain.

Correct AnswerverifiedShow Answer

Some neurons are specialized to detect stimuli, whereas neurons send signals to the effectors of the nervous system.

Correct AnswerverifiedShow Answer

Any two EPSPs will override one IPSP.

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The autonomic nervous system is also called the

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form myelin in the spinal cord.

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Opening of gates produces an .

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Neurons move material away from the soma by retrograde transport.

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Which of the following will cause the plasma membrane to hyperpolarize when at its RMP?

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The nervous system employs exclusively electrical means to send messages, whereas the endocrine system communicates by means of chemical messengers.

Correct AnswerverifiedShow Answer

The myelin sheath is formed by

Correct AnswerverifiedShow Answer

Even though all action potentials are the same, the brain can differentiate a variety of stimuli by source and intensity.The mechanism by which the nervous system converts these action potentials into meaningful information is called neural

Correct AnswerverifiedShow Answer

Local potentials are , whereas action potentials are .

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In the brain, neurons are more abundant than neuroglia.

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About 90% of the neurons in the nervous system are neurons.

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