Question 1

A motor neuron's __________ and ___________ reside in the central nervous system,but its ____________ extend(s) into the peripheral nervous system.

Accepted Answer

A)  cell body,dendrites,axon
B)  dendrites,cell body,axon
C)  dendrites,axon,cell body
D)  axon,cell body,dendrites
E)  None of the answers are correct.F) B) and E)
G) None of the above

Question 2

Which of the following senses would not utilize mechanoreceptors?

Accepted Answer

A)  hearing
B)  touch
C)  taste
D)  equilibriumE) A) and D)
F) B) and C)

Question 3

The ______ receives the signal that your finger is too hot and sends the message to move the finger away from the stove.The ______ transfers the message to the finger.

Accepted Answer

A)  spinal cord;spinal cord
B)  central nervous system;peripheral nervous system
C)  peripheral nervous system;spinal cord
D)  peripheral nervous system;brain
E)  brain;central nervous systemF) C) and E)
G) All of the above

Question 4

The division of the nervous system that integrates sensory information and coordinates the body's response is the

Accepted Answer

A)  peripheral nervous system.
B)  central nervous system.
C)  somatic nervous system.
D)  autonomic nervous system.
E)  sympathetic nervous system.F) All of the above
G) C) and D)

Question 5

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with schizophrenia have increased dopamine.Which symptoms would be expected in a patient with schizophrenia?

Accepted Answer

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

Question 6

In conductive deafness,the middle ear fails to move sound to the inner ear.By amplifying sounds in the auditory canal,the hearing aid moves the _______ more than normal,helping the person hear more clearly.

Accepted Answer

A)  cochlea
B)  eardrum
C)  oval window
D)  auditory canal
E)  auditory nerveF) None of the above
G) C) and D)

Question 7

Receptors for the special senses are limited to the

Accepted Answer

A)  head.
B)  tongue.
C)  ears.
D)  feet.
E)  abdomen.F) C) and E)
G) A) and E)

Question 8

What does the puffer fish neurotoxin tetrodotoxin directly inhibit?

Accepted Answer

A)  proteins involved in active transport
B)  channel proteins involved in osmosis
C)  proteins involved in ATP synthesis
D)  channel proteins involved in diffusion
E)  relaxation of musclesF) A) and B)
G) B) and D)

Question 9

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 E)
G) C) and E)

Question 10

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with Parkinson disease have decreased dopamine.Which symptoms would be expected in a patient with Parkinson disease?

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

Only motor neurons reside entirely within the central nervous system.

Accepted Answer

A) True 
 B)False

Question 13

In humans,which of the following is used primarily to detect sharp blows and excessive heat?

Accepted Answer

A)  mechanoreceptor
B)  chemoreceptor
C)  photoreceptor
D)  thermoreceptor
E)  pain receptorF) B) and C)
G) A) and C)

Question 14

Usually nerve impulses travel from one neuron to another by

Accepted Answer

A)  neurotransmitters.
B)  action potentials.
C)  resting potentials.
D)  threshold potentials.
E)  myelin sheath.F) D) and E)
G) B) and E)

Question 15

In the section "Investigating Life: The Nerve of Those Clams!",which of the following would occur in sensitive clam cells that have been exposed to the toxin?

Accepted Answer

A)  Na+ ions would no longer be able to leave a neuron by facilitated diffusion.
B)  Na+ ions would no longer be able to leave a neuron by active transport.
C)  Na+ ions would no longer be able to enter a neuron by active transport.
D)  Na+ ions would no longer be able to enter a neuron by facilitated diffusion.E) C) and D)
F) A) and B)

Question 16

In humans,which of the following is used primarily to detect touch and vibration?

Accepted Answer

A)  photoreceptors
B)  thermoreceptors
C)  mechanoreceptors
D)  pain receptors
E)  chemoreceptorsF) B) and E)
G) All of the above

Question 17

The part of the eye that focuses light onto a sheet of photoreceptors is the

Accepted Answer

A)  lens.
B)  cone.
C)  pupil.
D)  retina.
E)  iris.F) A) and D)
G) B) and E)

Question 18

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

Accepted Answer

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

Question 19

In the section "Investigating Life: The Nerve of Those Clams!",how would exposure to saxitoxin from algae cause genetic changes in clams?

Accepted Answer

A)  Saxitoxin would cause mutations to occur in the clam's DNA.
B)  Saxitoxin would increase the mutation rates in clams.
C)  Saxitoxin would select existing mutations in the clam population.
D)  Clams sensitive to saxitoxin would migrate away from the algae bloom.
E)  Clams would want to change their Na+ transporters to become resistant to saxitoxin.F) All of the above
G) B) and D)

Question 20

A platypus senses its prey not only through touch,but also by sensing electricity.How can the signal be transmitted from the bill to the brain of a platypus?

Accepted Answer

A)  The electricity would be transmitted directly to the brain through nerves.
B)  The electricity would be transmitted directly to the brain through the blood.
C)  By activating receptors in the brain.
D)  By stimulating muscle contractions.
E)  By activating receptors on neurons.F) A) and B)
G) B) and C)

Exam 24: Nervous System and the Senses

A motor neuron's __________ and ___________ reside in the central nervous system,but its ____________ extend(s) into the peripheral nervous system.

Correct AnswerverifiedShow Answer

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with schizophrenia have increased dopamine.Which symptoms would be expected in a patient with schizophrenia?

Correct AnswerverifiedShow Answer

A platypus senses its prey not only through touch,but also by sensing electricity.How can the signal be transmitted from the bill to the brain of a platypus?

Correct AnswerverifiedShow Answer

Only motor neurons reside entirely within the central nervous system.

Correct AnswerverifiedShow Answer

Dopamine is an inhibitory neurotransmitter released into neuromuscular synapses.Patients with Parkinson disease have decreased dopamine.Which symptoms would be expected in a patient with Parkinson disease?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Nerve of Those Clams!",how would exposure to saxitoxin from algae cause genetic changes in clams?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: The Nerve of Those Clams!",which of the following would occur in sensitive clam cells that have been exposed to the toxin?

Correct AnswerverifiedShow Answer

The division of the nervous system that integrates sensory information and coordinates the body's response is the

Correct AnswerverifiedShow Answer

Usually nerve impulses travel from one neuron to another by

Correct AnswerverifiedShow Answer

Which of the following senses would not utilize mechanoreceptors?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The part of the eye that focuses light onto a sheet of photoreceptors is the

Correct AnswerverifiedShow Answer

In humans,which of the following is used primarily to detect sharp blows and excessive heat?

Correct AnswerverifiedShow Answer

Receptors for the special senses are limited to the

Correct AnswerverifiedShow Answer

The ______ receives the signal that your finger is too hot and sends the message to move the finger away from the stove.The ______ transfers the message to the finger.

Correct AnswerverifiedShow Answer

In humans,which of the following is used primarily to detect touch and vibration?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What does the puffer fish neurotoxin tetrodotoxin directly inhibit?

Correct AnswerverifiedShow Answer

In conductive deafness,the middle ear fails to move sound to the inner ear.By amplifying sounds in the auditory canal,the hearing aid moves the _______ more than normal,helping the person hear more clearly.

Correct AnswerverifiedShow Answer

A motor neuron's ____ and _ reside in the central nervous system,but its ________ extend(s) into the peripheral nervous system.

Correct Answer
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The receives the signal that your finger is too hot and sends the message to move the finger away from the stove.The transfers the message to the finger.

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