Question 1

Which two drugs are in the same category?

Accepted Answer

A)   nicotine and alcohol
B)   nicotine and heroin
C)   alcohol and heroin
D)   cocaine and marijuana
E)   marijuana and heroinF) All of the above
G) A) and E)

Question 2

The postganglionic fiber in the parasympathetic division is long because the ganglia lie near or within the organ.

Accepted Answer

A) True 
 B)False

Question 3

The limbic system blends ____________ and __________ into a united whole.

Accepted Answer

A)   primitive emotions, higher mental functions
B)   complex emotions, basic mental functions
C)   complex emotions, higher mental functions
D)   primitive emotions, basic mental functions
E)   basic survival skills, higher mental functionsF) B) and E)
G) C) and D)

Question 4

Which of the following statements is not true concerning spinal nerves?

Accepted Answer

A)   The ventral root contains motor fibers exiting the gray matter.
B)   The dorsal root contains sensory fibers entering the gray matter.
C)   Spinal nerves are considered part of the CNS.
D)   The dorsal and ventral roots join before the spinal nerve leaves the vertebral canal.
E)   The spinal nerves project from the cord through intervertebral foramina.F) D) and E)
G) A) and D)

Question 5

List the two primary structures of the limbic system and indicate their functions.

Accepted Answer

1. amygdala: causes experience...

Question 6

When a neurotransmitter is released into the synaptic cleft, the response of the receiving neuron will be toward excitation.

Accepted Answer

A) True 
 B)False

Question 7

The repeated use of which drug leads to the body decreasing the natural production of endorphins?

Accepted Answer

A)   heroin
B)   marijuana
C)   K2
D)   methamphetamine
E)   ecstasyF) B) and E)
G) A) and D)

Question 8

The primary somatosensory area receives sensory input from

Accepted Answer

A)   the sense of touch.
B)   the sense of taste.
C)   the sense of vision.
D)   the sense of hearing.
E)   the sense of smell.F) A) and C)
G) D) and E)

Question 9

The gap where there is no myelin sheath around a nerve fiber is called a node of Ranvier.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is associated with the PNS but not the CNS?

Accepted Answer

A)   Schwann cells
B)   myelin sheath
C)   axon
D)   dendrite
E)   node of RanvierF) A) and C)
G) A) and E)

Question 11

Which one of the following is entirely located within the central nervous system?

Accepted Answer

A)   sensory neuron
B)   sensory receptor
C)   motor neuron
D)   effector
E)   interneuronF) A) and E)
G) All of the above

Question 12

In what way are the somatic motor pathway and the parasympathetic autonomic motor pathway similar?

Accepted Answer

A)   Both innervate glands and organs.
B)   Both innervate the skeletal muscles.
C)   Both utilize two neurons per message.
D)   Both use acetylcholine as a neurotransmitter.
E)   Both are voluntary.F) A) and B)
G) C) and D)

Question 13

Why is the outside of a neuron positively charged?

Accepted Answer

A)   because sodium ions gather around the outside of the cell membrane
B)   because calcium ions gather around the outside of the cell membrane
C)   because potassium ions gather around the inside of the cell membrane
D)   because sodium ions gather around the inside of the cell membrane
E)   because chloride ions gather around the outside of the cell membraneF) A) and B)
G) C) and D) A

Question 14

Depolarization of the neuron occurs when

Accepted Answer

A)   the potassium gates open and potassium moves outside the cell.
B)   the sodium-potassium pump moves sodium inside the cell.
C)   sodium gates open and sodium moves inside the cell.
D)   the sodium-potassium pumps moves potassium inside the cell.
E)   water moves to the outside of the cell and chloride ions follow.F) A) and E)
G) C) and D)

Question 15

The brain stem contains the midbrain, the pons, and the medulla oblongata.

Accepted Answer

A) True 
 B)False

Question 16

The white matter of the spinal cord surrounds the gray matter.

Accepted Answer

A) True 
 B)False

Question 17

How is alcohol classified?

Accepted Answer

A)   stimulant
B)   depressant
C)   psychoactive
D)   inhibitor
E)   none of theseF) B) and D)
G) A) and D)

Question 18

Dopamine plays a central role in the working of the brain's built-in reward circuit.

Accepted Answer

A) True 
 B)False  True

Question 19

Heavy use of which drug can lead to hallucinations, anxiety, depression, paranoia, and psychotic symptoms?

Accepted Answer

A)   marijuana
B)   ecstasy
C)   heroin
D)   cocaine
E)   methamphetamineF) C) and D)
G) B) and E)

Question 20

What ensures the one-way direction of an action potential?

Accepted Answer

A)   As soon as the action potential has passed by, that portion of the axon undergoes a short refractory period.
B)   Action potentials are self-propagating.
C)   Conduction of an action potential is an all-or-none event.
D)   An action potential at one node causes an action potential at the next node.
E)   An axon can conduct a volley of action potentials very quickly.F) A) and B)
G) A) and C) A

Exam 13: Nervous System

Which two drugs are in the same category?

Correct AnswerverifiedShow Answer

The postganglionic fiber in the parasympathetic division is long because the ganglia lie near or within the organ.

Correct AnswerverifiedShow Answer

The limbic system blends ____________ and __________ into a united whole.

Correct AnswerverifiedShow Answer

Which of the following statements is not true concerning spinal nerves?

Correct AnswerverifiedShow Answer

List the two primary structures of the limbic system and indicate their functions.

Correct Answerverified1. amygdala: causes experience...View AnswerShow Answer

When a neurotransmitter is released into the synaptic cleft, the response of the receiving neuron will be toward excitation.

Correct AnswerverifiedShow Answer

The repeated use of which drug leads to the body decreasing the natural production of endorphins?

Correct AnswerverifiedShow Answer

The primary somatosensory area receives sensory input from

Correct AnswerverifiedShow Answer

The gap where there is no myelin sheath around a nerve fiber is called a node of Ranvier.

Correct AnswerverifiedShow Answer

Which of the following is associated with the PNS but not the CNS?

Correct AnswerverifiedShow Answer

Which one of the following is entirely located within the central nervous system?

Correct AnswerverifiedShow Answer

In what way are the somatic motor pathway and the parasympathetic autonomic motor pathway similar?

Correct AnswerverifiedShow Answer

Why is the outside of a neuron positively charged?

Correct AnswerverifiedA

Depolarization of the neuron occurs when

Correct AnswerverifiedShow Answer

The brain stem contains the midbrain, the pons, and the medulla oblongata.

Correct AnswerverifiedShow Answer

The white matter of the spinal cord surrounds the gray matter.

Correct AnswerverifiedShow Answer

How is alcohol classified?

Correct AnswerverifiedShow Answer

Dopamine plays a central role in the working of the brain's built-in reward circuit.

Correct AnswerverifiedTrue

Heavy use of which drug can lead to hallucinations, anxiety, depression, paranoia, and psychotic symptoms?

Correct AnswerverifiedShow Answer

What ensures the one-way direction of an action potential?

Correct AnswerverifiedA

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The limbic system blends __ and into a united whole.

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1. amygdala: causes experience...
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A

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True

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A