Question 1

Two neurons interact with each other at the _______.

Accepted Answer

A)   axon hillocks
B)   cell bodies
C)   dendrites
D)   axon terminals
E)   myelin sheathsF) C) and D)
G) A) and D)

Question 2

Which statement best explains why drugs users need more and more of the drug to reach the same level of pleasure?

Accepted Answer

A)   As dopamine receptors are reduced,more of the drug is required to ensure the remaining receptors are occupied.
B)   As dopamine receptors increase in number,more of the drug is required to fill the empty receptors.
C)   Natural dopamine production is increased;therefore,more drugs are required to increase receptor sites.
D)   Dopamine receptors stop producing dopamine;therefore,more drugs are required to increase receptor production.
E)   As dopamine production is reduced,more of the drug is required to ensure that the remaining receptors are occupied.F) All of the above
G) A) and E) A

Question 3

A difference between the central and peripheral nervous systems is that _________.

Accepted Answer

A)   the peripheral nervous system contains neurons,unlike the central nervous system
B)   the peripheral nervous system is not involved in regulating body functions
C)   the neurons of the central nervous system use neurotransmitters
D)   the central nervous system only contains receiving neurons
E)   None of the answers are correct.F) A) and B)
G) A) and D)

Question 4

The brain is part of the central nervous system.Messages sent from the brain to the fingers and toes must travel from the central nervous system to the _____ nervous system.

Accepted Answer

A)   main
B)   effector
C)   peripheral
D)   sensory
E)   simpleF) A) and C)
G) A) and B)

Question 5

Which of the following best describes what you would observe in an individual who doesn't use addictive drugs and who has normal dopamine signaling?

Accepted Answer

A)   moderate dopamine production,many dopamine receptors,some receptors empty
B)   moderate dopamine production,many dopamine receptors,all receptors filled
C)   high levels of dopamine production,few dopamine receptors,all receptors filled
D)   high levels of dopamine production,many dopamine receptors,all receptors filled
E)   moderate dopamine production,few dopamine receptors,some receptors emptyF) C) and D)
G) A) and D)

Question 6

Over time,repeated drug use can lead to _____.

Accepted Answer

A)   a decrease in the number of available dopamine receptors
B)   a decrease in natural dopamine production
C)   an increase in natural dopamine production
D)   a decrease in dopamine receptors and a decrease in dopamine production
E)   a decrease in dopamine receptors and an increase in natural dopamine productionF) B) and E)
G) B) and D)

Question 7

The central nervous system is composed of the _______ and the _______.

Accepted Answer

A)   spinal cord;peripheral nerves
B)   sensory nerves;motor nerves
C)   interneurons;motor nerves
D)   brain;spinal cord
E)   cerebral;spinal cordF) B) and E)
G) A) and D) D

Question 8

Which of the following is NOT part of the limbic system?

Accepted Answer

A)   prefrontal cortex
B)   hypothalamus
C)   hippocampus
D)   amygdala
E)   thalamusF) B) and D)
G) A) and B)

Question 9

The general flow of information through the nervous system is from _____ to _____ to _____.

Accepted Answer

A)   sensory receptors;the brain;the peripheral nervous system
B)   the central nervous system;the brain;effector cells
C)   the peripheral nervous system;the central nervous system;effector cells
D)   the peripheral nervous system;effector cells;the central nervous system
E)   the central nervous system;the peripheral nervous system;effector cellsF) None of the above
G) C) and D) C

Question 10

Which statement regarding neurons is incorrect?

Accepted Answer

A)   The nervous system uses electrical currents to pass information along neurons.
B)   Neurons are highly specialized cells that lack a nucleus.
C)   Each neuron contains only one axon.
D)   Dendrites collect information and "carry" it toward the cell body.
E)   The human body contains a complex network of neurons that work to maintain homeostasis.F) A) and C)
G) B) and E)

Question 11

People who receive a sharp blow to the elbow will sometimes feel their pinky and third finger go numb.The injury that causes this happens to the ________.

Accepted Answer

A)   central nervous system
B)   peripheral nervous system
C)   sensory neurons
D)   motor neurons
E)   spinal cordF) B) and C)
G) B) and E)

Question 12

The amygdala processes _______.

Accepted Answer

A)   temperature fluctuations
B)   input from the olfactory nerves
C)   fear and anxiety
D)   the sex drive
E)   memory and learningF) A) and B)
G) All of the above

Question 13

The support cells protecting neurons are called _______ cells.

Accepted Answer

A)   glial
B)   myelin
C)   axial
D)   neuroblasts
E)   axonsF) A) and D)
G) A) and E)

Question 14

Methamphetamine abuse is associated with reduced dopamine receptors and impaired short-term memory.Regarding memory loss,it is likely that the drug is affecting the _______.

Accepted Answer

A)   limbic system
B)   brain stem
C)   spinal cord
D)   cerebellum
E)   sensory neuronsF) A) and B)
G) B) and D)

Question 15

An action potential begins when,in response to a stimulus,_______.

Accepted Answer

A)   sodium channels open and sodium enters the neuron
B)   sodium channels open and sodium exits the neuron
C)   potassium channels open and potassium enters the neuron
D)   potassium channels open and potassium exits the neuron
E)   sodium channels close and sodium is pumped out of the neuronF) C) and D)
G) A) and E)

Question 16

The nervous system is composed of two parts,the _______ and the _______.

Accepted Answer

A)   sensory;central
B)   sensory;peripheral
C)   central;peripheral
D)   motor;central
E)   brain;nervesF) B) and D)
G) A) and C)

Question 17

The central nervous system consists of ________,whereas the peripheral nervous system consists of _______.

Accepted Answer

A)   the brain,spinal cord,and other nervous tissue;peripheral nerves
B)   the brain and spinal cord;effector cells
C)   all nervous tissue;effector cells
D)   the brain and spinal cord;peripheral nerves
E)   effector cells;sensory cellsF) A) and B)
G) A) and C)

Question 18

Sensory receptors in your skin belong to the _______.

Accepted Answer

A)   central nervous system
B)   spinal cord
C)   peripheral nervous system
D)   effector system
E)   None of the answers are correct.F) A) and D)
G) A) and C)

Question 19

Dopamine _______.

Accepted Answer

A)   is an addictive drug
B)   is not normally produced by healthy humans
C)   is normally only produced at night
D)   triggers a fight or flight reaction in most humans
E)   is a neurotransmitterF) A) and E)
G) B) and D)

Question 20

The nucleus of a neuron is found in the _______.

Accepted Answer

A)   axon hillocks
B)   cell body
C)   dendrites
D)   axon terminals
E)   myelin sheathsF) A) and D)
G) A) and E)

Exam 30: Central Nervous System

Two neurons interact with each other at the _______.

Correct AnswerverifiedShow Answer

Which statement best explains why drugs users need more and more of the drug to reach the same level of pleasure?

Correct AnswerverifiedA

A difference between the central and peripheral nervous systems is that _________.

Correct AnswerverifiedShow Answer

The brain is part of the central nervous system.Messages sent from the brain to the fingers and toes must travel from the central nervous system to the _____ nervous system.

Correct AnswerverifiedShow Answer

Which of the following best describes what you would observe in an individual who doesn't use addictive drugs and who has normal dopamine signaling?

Correct AnswerverifiedShow Answer

Over time,repeated drug use can lead to _____.

Correct AnswerverifiedShow Answer

The central nervous system is composed of the _______ and the _______.

Correct AnswerverifiedD

Which of the following is NOT part of the limbic system?

Correct AnswerverifiedShow Answer

The general flow of information through the nervous system is from _____ to _____ to _____.

Correct AnswerverifiedC

Which statement regarding neurons is incorrect?

Correct AnswerverifiedShow Answer

People who receive a sharp blow to the elbow will sometimes feel their pinky and third finger go numb.The injury that causes this happens to the ________.

Correct AnswerverifiedShow Answer

The amygdala processes _______.

Correct AnswerverifiedShow Answer

The support cells protecting neurons are called _______ cells.

Correct AnswerverifiedShow Answer

Methamphetamine abuse is associated with reduced dopamine receptors and impaired short-term memory.Regarding memory loss,it is likely that the drug is affecting the _______.

Correct AnswerverifiedShow Answer

An action potential begins when,in response to a stimulus,_______.

Correct AnswerverifiedShow Answer

The nervous system is composed of two parts,the _______ and the _______.

Correct AnswerverifiedShow Answer

The central nervous system consists of ________,whereas the peripheral nervous system consists of _______.

Correct AnswerverifiedShow Answer

Sensory receptors in your skin belong to the _______.

Correct AnswerverifiedShow Answer

Dopamine _______.

Correct AnswerverifiedShow Answer

The nucleus of a neuron is found in the _______.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The central nervous system is composed of the _ and the _.

Correct Answer
verified
D

Correct Answer
verified

The general flow of information through the nervous system is from ___ to _ to ___.

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The nervous system is composed of two parts,the _ and the _.

Correct Answer
verified

The central nervous system consists of __,whereas the peripheral nervous system consists of _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified