Question 1

Both meningitis and kuru involve infectious agents.

Accepted Answer

A) True 
 B)False

Question 2

How fast a person can type or play the piano is ultimately limited by the number of impulses a person can send to their finger muscles per second.This in turn is limited by

Accepted Answer

A)  primarily the type of muscle.
B)  whether the signal is pain,sound,motor,etc.
C)  the magnitude or strength of the nerve impulse.
D)  the number of neurons and synapses involved.
E)  the speed with which sodium ion can be pumped back outside the neuron membrane.F) B) and C)
G) B) and E)

Question 3

The difference between a weak stimulus and an intense stimulus is

Accepted Answer

A)  the action potential is gradated and a weak stimulus causes a small change in polarity.
B)  weak stimuli only open sodium gates,and strong stimuli also open potassium gates.
C)  the axon fires at a greater frequency for an intense stimulus.
D)  a strong stimulus does not allow repolarization,but sends a constant flow of ions.
E)  an intense stimulus causes more sodium ions to diffuse into the cell.F) B) and E)
G) A) and D)

Question 4

Which types of cells are found only in the central nervous system?

Accepted Answer

A)  interneurons
B)  sensory neurons
C)  motor neurons
D)  interneurons and sensory neurons
E)  interneurons and motor neuronsF) A) and B)
G) None of the above

Question 5

The summing up of excitatory and inhibitory signals in a neuron is called

Accepted Answer

A)  repolarization.
B)  inhibition.
C)  synapse.
D)  synaptic integration.
E)  sympathetic response.F) B) and E)
G) A) and E)

Question 6

Which description best fits the peripheral nervous system (PNS) ?

Accepted Answer

A)  nerves that carry sensory messages to the CNS and motor commands to the muscles and glands
B)  nerves that carries motor commands to the CNS and sensory messages to the muscles and glands
C)  consists of the brain and spinal cord,located in the midline of the body
D)  consists of the brain and spinal cord,located on the peripheral aspect of the body
E)  None of the answers are descriptions of the Peripheral Nervous System (PNS) .F) B) and D)
G) B) and C)

Question 7

Which part of the brain is used to integrate incoming information and send it to the appropriate portion of the cerebrum?

Accepted Answer

A)  hypothalamus
B)  cerebellum
C)  thalamus
D)  limbic system
E)  basal nucleiF) C) and D)
G) B) and C)

Question 8

A reflex

Accepted Answer

A)  is an automatic,involuntary response.
B)  does not require the central nervous system.
C)  is normally controlled consciously.
D)  has no protective value.
E)  involves only sensory neurons.F) A) and B)
G) A) and E)

Question 9

Dendrites

Accepted Answer

A)  may be several feet in length.
B)  are always myelinated.
C)  are found only in the CNS.
D)  are solely responsible for nervous conduction.
E)  carry impulses toward a cell body.F) A) and E)
G) C) and D)

Question 10

What are the interconnecting spaces that produce and serve as a reservoir for cerebrospinal fluid in the brain called?

Accepted Answer

A)  meninges
B)  ventricles
C)  corpus callosum
D)  insula
E)  gangliaF) A) and E)
G) C) and D)

Question 11

The brains of Alzheimer disease patients show no abnormalities postmortem.

Accepted Answer

A) True 
 B)False

Question 12

The membranes that protect the brain and spinal cord are called

Accepted Answer

A)  cerebrospinal membranes.
B)  meninges.
C)  ventricles.
D)  epithelium.
E)  gray matter.F) A) and B)
G) B) and D)

Question 13

Which body part is associated with only the primary somatosensory area?

Accepted Answer

A)  genitals
B)  pharynx
C)  tongue
D)  face
E)  thumbF) A) and E)
G) B) and E)

Question 14

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

Accepted Answer

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

Question 15

Since the membrane is more permeable to K+ than to Na+,

Accepted Answer

A)  there are always more positive ions outside the membrane than inside.
B)  there are always more negative ions outside the membrane than inside.
C)  the outside of the membrane is always negative.
D)  the outside of the membrane is always neutral.
E)  there really is never a resting potential.F) A) and E)
G) D) and E)

Question 16

The enzyme that breaks down acetylcholine within the synaptic cleft is

Accepted Answer

A)  acetylcholinesterase.
B)  monoamine oxidase.
C)  GABA.
D)  lipase.
E)  maltase.F) A) and E)
G) A) and D)

Question 17

What is the definition of learning?

Accepted Answer

A)  ability to retain and utilize past memories
B)  ability to hold a thought in mind or recall events from the past
C)  ability to forget unfavorable experiences
D)  ability to store information
E)  ability to retain and form memoriesF) C) and D)
G) B) and C)

Question 18

The main function of the cerebrospinal fluid is

Accepted Answer

A)  to provide saltatory transmission.
B)  to provide nutrients for the neurons.
C)  defense of the nervous system against pathogens.
D)  to produce gray matter.
E)  to cushion and protect the central nervous system.F) B) and D)
G) A) and B)

Question 19

The primary functions of the spinal cord involve

Accepted Answer

A)  intelligence and memory.
B)  speech,taste,smell,vision,and hearing.
C)  reflex actions and communication between the brain and peripheral nerves.
D)  controlling muscle activity and maintaining balance.
E)  local control and decision making for local anatomy.F) A) and E)
G) B) and D)

Question 20

Certain people have an inability to speak due to brain damage.The most likely area of the brain that has been damaged is

Accepted Answer

A)  Broca's area.
B)  the meninges.
C)  the ventricles.
D)  the amygdala.
E)  the limbic system.F) B) and C)
G) A) and B)

Exam 17: Nervous System

Which description best fits the peripheral nervous system (PNS) ?

Correct AnswerverifiedShow Answer

Which part of the brain is used to integrate incoming information and send it to the appropriate portion of the cerebrum?

Correct AnswerverifiedShow Answer

Both meningitis and kuru involve infectious agents.

Correct AnswerverifiedShow Answer

Which types of cells are found only in the central nervous system?

Correct AnswerverifiedShow Answer

A reflex

Correct AnswerverifiedShow Answer

The main function of the cerebrospinal fluid is

Correct AnswerverifiedShow Answer

What are the interconnecting spaces that produce and serve as a reservoir for cerebrospinal fluid in the brain called?

Correct AnswerverifiedShow Answer

The membranes that protect the brain and spinal cord are called

Correct AnswerverifiedShow Answer

The brains of Alzheimer disease patients show no abnormalities postmortem.

Correct AnswerverifiedShow Answer

The primary functions of the spinal cord involve

Correct AnswerverifiedShow Answer

Which body part is associated with only the primary somatosensory area?

Correct AnswerverifiedShow Answer

Since the membrane is more permeable to K+ than to Na+,

Correct AnswerverifiedShow Answer

The summing up of excitatory and inhibitory signals in a neuron is called

Correct AnswerverifiedShow Answer

What is the definition of learning?

Correct AnswerverifiedShow Answer

The difference between a weak stimulus and an intense stimulus is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Dendrites

Correct AnswerverifiedShow Answer

How fast a person can type or play the piano is ultimately limited by the number of impulses a person can send to their finger muscles per second.This in turn is limited by

Correct AnswerverifiedShow Answer

The enzyme that breaks down acetylcholine within the synaptic cleft is

Correct AnswerverifiedShow Answer

Certain people have an inability to speak due to brain damage.The most likely area of the brain that has been damaged is

Correct AnswerverifiedShow Answer

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Since the membrane is more permeable to K⁺ than to Na⁺,

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