Question 1

The three major components of the human nervous system are

Accepted Answer

A)   sensory integration, glandular response, and motor response.
B)   seeing, feeling, and hearing.
C)   sensory input, sensory integration, and motor response.
D)   smooth muscle response, cardiac muscle response, and skeletal muscle response.
E)   None of the answer choices is correct.F) B) and E)
G) A) and D)

Question 2

If asked to point to the place on a model of the brain where essential functions such as breathing,blood pressure,heart rate,and swallowing are regulated,you would point to the

Accepted Answer

A)   cerebellum.
B)   thalamus.
C)   medulla oblongata.
D)   pons.
E)   cerebrum.F) B) and E)
G) All of the above

Question 3

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with Parkinson disease have decreased dopamine and therefore will exhibit

Accepted Answer

A)   hyperactive voluntary movements.
B)   slowed senses.
C)   slowed voluntary movements.
D)   decreased mental ability and memory loss.
E)   excessive sleeping.F) D) and E)
G) B) and D)

Question 4

The rounded part of a neuron containing the nucleus and mitochondria is the

Accepted Answer

A)   myelin sheath.
B)   axon.
C)   synapse.
D)   dendrite.
E)   cell body.F) C) and D)
G) A) and B)

Question 5

In humans,taste buds are most highly concentrated on the inside surface of the lips of the mouth.

Accepted Answer

A) True 
 B)False

Question 6

During an action potential,sodium ions enter the cell.

Accepted Answer

A) True 
 B)False

Question 7

Receptors for the general senses are

Accepted Answer

A)   limited to the head.
B)   limited to the legs.
C)   found only in the brain and spinal cord.
D)   found throughout the body.
E)   found only on the surface of the body.F) All of the above
G) None of the above

Question 8

-Multiple sclerosis is an autoimmune disease in which a person produces antibodies against myelin.How would this affect the nervous system?

Accepted Answer

A)   Nerve impulses would travel faster.
B)   Nerves would fire continuously.
C)   Nerves would be unable to fire.
D)   Nerve impulses would travel more slowly.
E)   Nerves cannot release neurotransmitters to pass the signal to muscles.F) C) and D)
G) A) and B)

Question 9

Grasshopper mice are resistant to exhibiting pain from scorpion stings.This is due to the scorpion venom ________ the action potential in the pain receptors.

Accepted Answer

A)   activating
B)   inhibiting
C)   reestablishing
D)   speeding up
E)   slowing downF) C) and D)
G) B) and C)

Question 10

A threshold potential is like a tipping point past which an action potential starts.

Accepted Answer

A) True 
 B)False

Question 11

The condition that develops when acetylcholine levels in the brain are deficient is

Accepted Answer

A)   epilepsy.
B)   insomnia.
C)   Parkinson disease.
D)   Huntington disease.
E)   Alzheimer disease.F) B) and D)
G) A) and B)

Question 12

An action potential is generated when the general senses detect

Accepted Answer

A)   warm bath water.
B)   a cold pool.
C)   a kiss.
D)   a cut or scrape.
E)   All of the answer choices are correct.F) A) and B)
G) B) and C)

Question 13

The reason that we can tell light from sound is because different neurons transmit these different stimuli.

Accepted Answer

A) True 
 B)False

Question 14

The dendrite is the receiving end of a synapse.

Accepted Answer

A) True 
 B)False

Question 15

If you were studying mutant rabbits which seem unable to sense and move away from a harmful heat source,you would look for a gene coding for what kind of protein?

Accepted Answer

A)   photoreceptor
B)   pain receptor
C)   thermoreceptor
D)   mechanoreceptor
E)   chemoreceptorF) C) and E)
G) A) and C)

Question 16

In the "Investigating Life" section at the end of the chapter,grasshopper mice have fewer action potentials when bitten by scorpions.

Accepted Answer

A) True 
 B)False

Question 17

The nerve that conducts impulses to the area of the brain that determines sound is the

Accepted Answer

A)   olfactory nerve.
B)   auditory nerve.
C)   optic nerve.
D)   retinal nerve.
E)   pons.F) B) and E)
G) B) and C)

Question 18

The sodium-potassium pump moves sodium ions into the neuron and potassium ions out of the neuron.

Accepted Answer

A) True 
 B)False

Question 19

The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is

Accepted Answer

A)   insomnia.
B)   epilepsy.
C)   Alzheimer disease.
D)   Parkinson disease.
E)   Huntington disease.F) B) and C)
G) C) and D)

Question 20

In humans,if you wanted to eliminate the ability to smell dung,which type of receptor should be changed?

Accepted Answer

A)   photoreceptor
B)   chemoreceptor
C)   thermoreceptor
D)   pain receptor
E)   mechanoreceptorF) A) and E)
G) None of the above

Exam 24: The Nervous System and the Senses

In humans,taste buds are most highly concentrated on the inside surface of the lips of the mouth.

Correct AnswerverifiedShow Answer

In the "Investigating Life" section at the end of the chapter,grasshopper mice have fewer action potentials when bitten by scorpions.

Correct AnswerverifiedShow Answer

The rounded part of a neuron containing the nucleus and mitochondria is the

Correct AnswerverifiedShow Answer

Grasshopper mice are resistant to exhibiting pain from scorpion stings.This is due to the scorpion venom ________ the action potential in the pain receptors.

Correct AnswerverifiedShow Answer

The nerve that conducts impulses to the area of the brain that determines sound is the

Correct AnswerverifiedShow Answer

A threshold potential is like a tipping point past which an action potential starts.

Correct AnswerverifiedShow Answer

The condition that develops when acetylcholine levels in the brain are deficient is

Correct AnswerverifiedShow Answer

If you were studying mutant rabbits which seem unable to sense and move away from a harmful heat source,you would look for a gene coding for what kind of protein?

Correct AnswerverifiedShow Answer

If asked to point to the place on a model of the brain where essential functions such as breathing,blood pressure,heart rate,and swallowing are regulated,you would point to the

Correct AnswerverifiedShow Answer

During an action potential,sodium ions enter the cell.

Correct AnswerverifiedShow Answer

The dendrite is the receiving end of a synapse.

Correct AnswerverifiedShow Answer

The sodium-potassium pump moves sodium ions into the neuron and potassium ions out of the neuron.

Correct AnswerverifiedShow Answer

In humans,if you wanted to eliminate the ability to smell dung,which type of receptor should be changed?

Correct AnswerverifiedShow Answer

-Multiple sclerosis is an autoimmune disease in which a person produces antibodies against myelin.How would this affect the nervous system?

Correct AnswerverifiedShow Answer

Receptors for the general senses are

Correct AnswerverifiedShow Answer

The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is

Correct AnswerverifiedShow Answer

The three major components of the human nervous system are

Correct AnswerverifiedShow Answer

The reason that we can tell light from sound is because different neurons transmit these different stimuli.

Correct AnswerverifiedShow Answer

An action potential is generated when the general senses detect

Correct AnswerverifiedShow Answer

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with Parkinson disease have decreased dopamine and therefore will exhibit

Correct AnswerverifiedShow Answer

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