Question 1

An impulse traveling up the spinal cord first enters the brain at the

Accepted Answer

A)  medulla.
B)  thalamus.
C)  hypothalamus.
D)  cerebellum.
E)  cerebrum.F) A) and D)
G) A) and E)

Question 2

Myelinated axons that run together in bundles in the CNS are

Accepted Answer

A)  ventricles.
B)  meninges.
C)  cortices.
D)  tracts.
E)  ganglia.F) A) and B)
G) C) and D)

Question 3

Administration of norepinephrine would

Accepted Answer

A)  dilate the bronchi and increase oxygen for blood.
B)  slow heartbeat.
C)  stimulate the digestive system to supply more sugar to the blood.
D)  cause the pupil of the eye to contract.
E)  promote an overall relaxed state.F) All of the above
G) A) and B)

Question 4

The sodium-potassium pump is primarily responsible for the

Accepted Answer

A)  resting potential.
B)  action potential.
C)  excretion of salts.
D)  contraction of muscle fibers.
E)  maintenance of isotonic water balance.F) A) and C)
G) B) and E)

Question 5

Which is NOT a correct association of disease with cause or symptoms?

Accepted Answer

A)  multiple sclerosis-myelin sheath lesions impair normal conduction of impulses
B)  Parkinson disease-malfunction of the basal nuclei
C)  Alzheimer disease-gradual death of brain cells in hippocampus due to calcium ion influx
D)  fetal alcohol syndrome-increased intelligence and physical performance
E)  cocaine overdose-seizures and cardiac or respiratory arrestF) A) and B)
G) B) and E)

Question 6

Which is a combination of physiological and psychological dependence?

Accepted Answer

A)  tolerance and withdrawal
B)  increasing a drug to get the same effect and preoccupation with trying to get more drugs
C)  seizures and craving for cocaine
D)  the rush of cocaine and the hallucinations of marijuana
E)  a cocaine binge and a nicotine cravingF) A) and B)
G) A) and C)

Question 7

In Figure 17.4,number 3 represents

Accepted Answer

A)  depolarization.
B)  repolarization.
C)  action potential.
D)  threshold.
E)  resting potential.F) C) and E)
G) A) and B)

Question 8

Jeremy has developed a problem with regulating his waking/sleeping cycle and regulating his body temperature.Doctors suspect he may have a brain lesion.Where might this lesion be located?

Accepted Answer

A)  in the cerebellum
B)  in the prefrontal area of the cerebrum
C)  in Broca's area of the cerebrum
D)  in the pons
E)  in the hypothalamusF) C) and E)
G) A) and D)

Question 9

In Figure 17.16,the structure at "a" is a(n)

Accepted Answer

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

Question 10

Which limbic structure allows us to respond to and display anger and also prompts the release of adrenaline into the bloodstream?

Accepted Answer

A)  amygdala
B)  hippocampus
C)  cerebellum
D)  cerebrum
E)  ponsF) All of the above
G) B) and D)

Question 11

Which is NOT a correct association of structure and function?

Accepted Answer

A)  axons-outgoing signals
B)  sensory neuron-controls sensory organs such as eyes
C)  cell body-nucleus and organelles
D)  dendrites-incoming signals
E)  interneuron-sums up input before sending signals to muscle or glandF) A) and D)
G) B) and D)

Question 12

Which of the following does NOT pertain to neurons?

Accepted Answer

A)  sodium pumps
B)  Schwann cells
C)  myelin
D)  nodes of Ranvier
E)  cell wallsF) None of the above
G) A) and D)

Question 13

Heroin binds to receptors on neurons that travel from the spinal cord to the region of the brain that feels pleasure.These receptors are normally meant for

Accepted Answer

A)  epinephrine.
B)  norepinephrine.
C)  dopamine.
D)  endorphins.
E)  acetylcholine.F) None of the above
G) A) and B)

Question 14

Nicotine is not considered a drug because it does not affect the body physically.

Accepted Answer

A) True 
 B)False

Question 15

Transmission of a nerve impulse from one neuron to another neuron is NOT dependent on

Accepted Answer

A)  the presence of calcium ions.
B)  a neurotransmitter substance.
C)  a synaptic cleft.
D)  a presynaptic and postsynaptic membrane.
E)  a refractory period.F) D) and E)
G) All of the above

Question 16

When anyone severs his spinal cord,as Christopher Reeve did in a horse riding accident,they suffer a loss of sensation and a loss of voluntary control.

Accepted Answer

A) True 
 B)False

Question 17

In Figure 17.4 of an action potential,number 1 indicates the movement of

Accepted Answer

A)  Na+ to the inside.
B)  Na+ to the outside.
C)  K+ to the inside.
D)  K+ to the outside.
E)  Cl- to the outside.F) A) and B)
G) A) and C)

Question 18

Which statement is NOT true about the development of an action potential?

Accepted Answer

A)  There is a rapid change in polarity from about -65 mV to about +40 mV.
B)  It requires two types of gated channels.
C)  The action potential ends when the polarity across the membrane reaches +40 mV.
D)  Depolarization occurs when sodium gates open and allow sodium ions to enter the cell.
E)  Potassium gates open after the sodium gates and allow potassium ions to leave the cell.F) A) and B)
G) A) and C)

Question 19

A stroke results from a disruption of the blood supply to the brain.

Accepted Answer

A) True 
 B)False

Question 20

Myasthenia gravis can be treated with immunosuppressive drugs,although there is no cure.

Accepted Answer

A) True 
 B)False

Exam 17: Nervous System

In Figure 17.16,the structure at "a" is a(n)

Correct AnswerverifiedShow Answer

In Figure 17.4 of an action potential,number 1 indicates the movement of

Correct AnswerverifiedShow Answer

Administration of norepinephrine would

Correct AnswerverifiedShow Answer

Which statement is NOT true about the development of an action potential?

Correct AnswerverifiedShow Answer

Jeremy has developed a problem with regulating his waking/sleeping cycle and regulating his body temperature.Doctors suspect he may have a brain lesion.Where might this lesion be located?

Correct AnswerverifiedShow Answer

In Figure 17.4,number 3 represents

Correct AnswerverifiedShow Answer

Heroin binds to receptors on neurons that travel from the spinal cord to the region of the brain that feels pleasure.These receptors are normally meant for

Correct AnswerverifiedShow Answer

Nicotine is not considered a drug because it does not affect the body physically.

Correct AnswerverifiedShow Answer

Myasthenia gravis can be treated with immunosuppressive drugs,although there is no cure.

Correct AnswerverifiedShow Answer

Which is a combination of physiological and psychological dependence?

Correct AnswerverifiedShow Answer

An impulse traveling up the spinal cord first enters the brain at the

Correct AnswerverifiedShow Answer

A stroke results from a disruption of the blood supply to the brain.

Correct AnswerverifiedShow Answer

When anyone severs his spinal cord,as Christopher Reeve did in a horse riding accident,they suffer a loss of sensation and a loss of voluntary control.

Correct AnswerverifiedShow Answer

Which is NOT a correct association of structure and function?

Correct AnswerverifiedShow Answer

Which limbic structure allows us to respond to and display anger and also prompts the release of adrenaline into the bloodstream?

Correct AnswerverifiedShow Answer

The sodium-potassium pump is primarily responsible for the

Correct AnswerverifiedShow Answer

Myelinated axons that run together in bundles in the CNS are

Correct AnswerverifiedShow Answer

Which is NOT a correct association of disease with cause or symptoms?

Correct AnswerverifiedShow Answer

Transmission of a nerve impulse from one neuron to another neuron is NOT dependent on

Correct AnswerverifiedShow Answer

Which of the following does NOT pertain to neurons?

Correct AnswerverifiedShow Answer

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