Question 1

The intensity of a message is determined by how many action potentials are generated within a given time.

Accepted Answer

A) True 
 B)False

Question 2

There are only two types of neurotransmitters: acetylcholine for excitation and norepinephrine for inhibition.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not a function of the nervous system?

Accepted Answer

A)   receive sensory input
B)   cushion and protect soft tissue
C)   perform information processing
D)   perform integration
E)   generate motor outputF) A) and C)
G) A) and E)

Question 4

Which of the following could happen to the neurotransmitter once it binds to the receiving membrane receptors?

Accepted Answer

A)   reabsorbed by the sending membrane
B)   absorbed by the receiving membrane in order to start the action potential
C)   stays bound to the receiving membrane
D)   released back into the synaptic cleft where it builds up
E)   degrades due to lack of Ca+F) B) and D)
G) A) and D)

Question 5

Wernicke's area is associated with

Accepted Answer

A)   reflex centers for controlling heartbeat.
B)   sexual arousal.
C)   the ability to ride a bike.
D)   the sense of smell.
E)   the ability to speak.F) C) and E)
G) A) and B)

Question 6

Which of the following is mismatched?

Accepted Answer

A)   sensory nerves- afferent
B)   motor nerves- efferent
C)   somatic motor nerves- smooth muscle, cardiac muscle, glands
D)   somatic sensory nerves- skin, muscles, joints, special senses
E)   visceral sensory nerves- body organsF) A) and B)
G) C) and D)

Question 7

Which of the following statements concerning the primary motor area is not true?

Accepted Answer

A)   The area that controls the thumb, fingers, and hand is larger than the area controlling the leg.
B)   The primary motor area is located anterior to the central sulcus.
C)   Control of muscles responsible for facial movements take up a large portion of the primary motor area.
D)   Voluntary commands to skeletal muscles begin in the primary motor area.
E)   The primary motor area is in the cerebellum.F) C) and D)
G) B) and D)

Question 8

Which conducts an action potential faster and why?

Accepted Answer

A)   myelinated fibers; the action potential moves through the myelin which allows it to travel faster
B)   myelinated fibers; the action potential jumps from one node of Ranvier to another
C)   unmyelinated fibers; the absence of myelin allows the action potential to travel faster
D)   unmyelinated fibers; the action potential jumps from one node of Ranvier to another
E)   unmyelinated fibers; the ions can move in and out of the cell faster without the myelin coatingF) A) and D)
G) D) and E)

Question 9

Which of the following is not a neurotransmitter?

Accepted Answer

A)   acetylcholine
B)   serotonin
C)   glutamate
D)   GABA
E)   ATPF) B) and E)
G) A) and B)

Question 10

How is alcohol classified?

Accepted Answer

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

Question 11

Which brain system receives sensory information from the skin, skeletal muscles, and tendons?

Accepted Answer

A)   somatic system of the PNS
B)   somatic system of the CNS
C)   autonomic system of the PNS
D)   autonomic system of the CNS
E)   all of theseF) B) and D)
G) C) and D)

Question 12

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) C) and D)
G) B) and C)

Question 13

The spinal cord belongs to the

Accepted Answer

A)   peripheral nervous system.
B)   central nervous system.
C)   axial nervous system.
D)   appendicular nervous system.
E)   none of these.F) C) and D)
G) B) and D)

Question 14

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) A) and B)
G) C) and E)

Question 15

The cells of the nervous tissue are all neurons, or cells that transmit nerve impulses.

Accepted Answer

A) True 
 B)False

Question 16

The structures of the limbic system are linked together because of their position within the cerebrum, even though they have a variety of functions.

Accepted Answer

A) True 
 B)False

Question 17

The entire action potential depolarization and repolarization)  occurs in a matter of

Accepted Answer

A)   milliseconds.
B)   seconds.
C)   minutes.
D)   hours.
E)   days.F) A) and D)
G) A) and C)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

How does caffeine work?

Accepted Answer

A)   increases the amount of neurotransmitter at a synapse
B)   interferes with or decreases the action of a neurotransmitter
C)   replace or mimic a neurotransmitter
D)   replace or mimic a neuromodulator
E)   promote the action of a neurotransmitterF) B) and D)
G) A) and D)

Question 20

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) D) and E)
G) A) and D)

Exam 14: Nervous System

Which of the following is mismatched?

Correct AnswerverifiedShow Answer

How does caffeine work?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The cells of the nervous tissue are all neurons, or cells that transmit nerve impulses.

Correct AnswerverifiedShow Answer

Which conducts an action potential faster and why?

Correct AnswerverifiedShow Answer

There are only two types of neurotransmitters: acetylcholine for excitation and norepinephrine for inhibition.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Why is the outside of a neuron positively charged?

Correct AnswerverifiedShow Answer

Which of the following is not a neurotransmitter?

Correct AnswerverifiedShow Answer

The structures of the limbic system are linked together because of their position within the cerebrum, even though they have a variety of functions.

Correct AnswerverifiedShow Answer

Which of the following statements concerning the primary motor area is not true?

Correct AnswerverifiedShow Answer

The intensity of a message is determined by how many action potentials are generated within a given time.

Correct AnswerverifiedShow Answer

Which brain system receives sensory information from the skin, skeletal muscles, and tendons?

Correct AnswerverifiedShow Answer

The entire action potential depolarization and repolarization) occurs in a matter of

Correct AnswerverifiedShow Answer

Wernicke's area is associated with

Correct AnswerverifiedShow Answer

The spinal cord belongs to the

Correct AnswerverifiedShow Answer

Which of the following could happen to the neurotransmitter once it binds to the receiving membrane receptors?

Correct AnswerverifiedShow Answer

How is alcohol classified?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not a function of the nervous system?

Correct AnswerverifiedShow Answer

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