Question 1

A phenomenon in which sensations become more noticeable with prolonged exposure to the stimulus is termed sensory adaptation.

Accepted Answer

A) True 
 B)False

Question 2

The dendrite,also called the nerve fiber,is typically a single long extension of the cell body.

Accepted Answer

A) True 
 B)False

Question 3

Multiple sclerosis is an autoimmune disease in which a person raises 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) B) and C)
G) B) and D)

Question 4

Acetylcholine is which of the following?

Accepted Answer

A)  an enzyme
B)  a neurotransmitter
C)  a voltage gated ion channel
D)  a receptor
E)  a source of fuel for neuronsF) None of the above
G) A) and D)

Question 5

An action potential is generated when free nerve endings detect

Accepted Answer

A)  warm bath water.
B)  a cold pool.
C)  a kiss.
D)  All answers are correct.
E)  a tap on the shoulder.F) C) and D)
G) A) and D)

Question 6

Molecules produced by humans that influence mood and the perception of pain are opiates.

Accepted Answer

A) True 
 B)False

Question 7

The nervous tissue that consists of myelinated axons transmitting information throughout the central nervous system is the

Accepted Answer

A)  white reflex.
B)  grey matter.
C)  red reflex.
D)  red matter.
E)  white matter.F) B) and E)
G) A) and D)

Question 8

Bone-conduction aids transmit sound waves directly to the oval window.This would bypass which of the following?

Accepted Answer

A)  the inner ear
B)  the outer ear
C)  the auditory canal
D)  the middle ear
E)  the cochleaF) A) and C)
G) A) and E)

Question 9

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

Question 10

The brain determines loudness of a sound by the number of neurons that are firing and the rate at which they fire.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following senses would utilize chemoreceptors?

Accepted Answer

A)  vision
B)  taste
C)  pain
D)  touchE) A) and C)
F) B) and C)

Question 12

The retina transduces light energy into action potentials.

Accepted Answer

A) True 
 B)False

Question 13

Rod cells provide color vision and allow us to see at night.

Accepted Answer

A) True 
 B)False

Question 14

The opening for light to enter into the eye is the

Accepted Answer

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

Question 15

Place the following events in the correct order which they occur when a neuron conveys a message.
resting potential
threshold potential
action potential

Accepted Answer

1resting potential
...

Question 16

In the cochlea,how is sound transmitted into nerve signals that reach the brain?

Accepted Answer

A)  through photoreceptors
B)  through thermoreceptors
C)  through pain receptors
D)  through mechanoreceptors
E)  through chemoreceptorsF) A) and B)
G) B) and D)

Question 17

The part of the brain that controls the qualities of what we consider the "mind" is the

Accepted Answer

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

Question 18

In a neuron at rest

Accepted Answer

A)  active transport is not occurring.
B)  sodium ions are more concentrated inside the cell than outside.
C)  very little metabolism is taking place.
D)  the inside of a neuron is positively charged as compared to the outside.
E)  potassium ions are more concentrated inside the cell than outsidE.F) C) and D)
G) B) and C)

Question 19

When a snake flicks its tongue the tips of the forked tongue pass through openings in the palate and contact sensory cells in the snout.How would this help a snake detect its prey?

Accepted Answer

A)  The snout touches the prey,stimulating mechanoreceptors that let the snake identify the prey.
B)  The snake can taste its prey when it bites it to tell if it is edible.
C)  The motion of the tongue moves air over the snake's snout,helping it to smell.
D)  The tongue touches the prey,stimulating mechanoreceptors that let the snake identify the prey.
E)  Odor molecules from the prey are brought to the snake's receptors.F) A) and C)
G) A) and B)

Question 20

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 D)
G) A) and B)

Exam 24: Nervous System and the Senses

The nervous tissue that consists of myelinated axons transmitting information throughout the central nervous system is the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When a snake flicks its tongue the tips of the forked tongue pass through openings in the palate and contact sensory cells in the snout.How would this help a snake detect its prey?

Correct AnswerverifiedShow Answer

Rod cells provide color vision and allow us to see at night.

Correct AnswerverifiedShow Answer

The brain determines loudness of a sound by the number of neurons that are firing and the rate at which they fire.

Correct AnswerverifiedShow Answer

Which of the following senses would utilize chemoreceptors?

Correct AnswerverifiedShow Answer

In a neuron at rest

Correct AnswerverifiedShow Answer

The part of the brain that controls the qualities of what we consider the "mind" is the

Correct AnswerverifiedShow Answer

The opening for light to enter into the eye is the

Correct AnswerverifiedShow Answer

A phenomenon in which sensations become more noticeable with prolonged exposure to the stimulus is termed sensory adaptation.

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

Place the following events in the correct order which they occur when a neuron conveys a message. resting potential threshold potential action potential

Correct Answerverified1resting potential ...View AnswerShow Answer

The dendrite,also called the nerve fiber,is typically a single long extension of the cell body.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Acetylcholine is which of the following?

Correct AnswerverifiedShow Answer

An action potential is generated when free nerve endings detect

Correct AnswerverifiedShow Answer

Molecules produced by humans that influence mood and the perception of pain are opiates.

Correct AnswerverifiedShow Answer

The retina transduces light energy into action potentials.

Correct AnswerverifiedShow Answer

In the cochlea,how is sound transmitted into nerve signals that reach the brain?

Correct AnswerverifiedShow Answer

Bone-conduction aids transmit sound waves directly to the oval window.This would bypass which of the following?

Correct AnswerverifiedShow Answer

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1resting potential
...
View Answer

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