Question 1

-In this partially cut-away brain diagram,what structure does number 2 indicate?

Accepted Answer

A)  Primary motor cortex
B)  Thalamus
C)  Cerebral nuclei
D)  Reticular formation
E)  TectumF) C) and D)
G) A) and E)

Question 2

A descending pathway carries

Accepted Answer

A)  sensory information from the body to the brain.
B)  motor information from the body to the brain.
C)  sensory information from the brain to the body.
D)  motor information from the brain to muscles and glands.
E)  both motor and sensory information from the body to the brain.F) None of the above
G) A) and E)

Question 3

-This figure shows motor pathways.What tract does number 5 indicate?

Accepted Answer

A)  Lateral corticospinal tract
B)  Rubrospinal tract
C)  Anterior corticospinal tract
D)  Vestibulospinal tract
E)  Tectospinal tractF) D) and E)
G) All of the above

Question 4

A transient ischemic attack (TIA)is more serious than a cerebrovascular accident (CVA).

Accepted Answer

A) True 
 B)False

Question 5

Over 90 percent of nervous system pathways decussate.What does "decussate" mean?

Accepted Answer

A)  Branch extensively
B)  Carry information to and from the same effector
C)  Cross from one side of the body to the other
D)  Switch from carrying motor information to carrying sensory information
E)  None of the choices is correct.F) B) and D)
G) C) and E)

Question 6

The inability to perform coordinated body movements is called

Accepted Answer

A)  aprosody.
B)  agnosia.
C)  precognition.
D)  ataxia.
E)  hemiballismus.F) A) and B)
G) A) and C)

Question 7

A nucleus is defined as a collection of neuron cell bodies located within the PNS.

Accepted Answer

A) True 
 B)False

Question 8

Only a fraction of our sensory impulses reach our conscious awareness.

Accepted Answer

A) True 
 B)False

Question 9

-This figure shows the anterolateral pathway.What structure does number 2 indicate?

Accepted Answer

A)  Tertiary neuron
B)  Secondary neuron
C)  Primary neuron
D)  Primary somatosensory cortex
E)  ThalamusF) B) and D)
G) All of the above

Question 10

All incoming impulses are sent to the brain for detailed processing.

Accepted Answer

A) True 
 B)False

Question 11

-This figure shows regions of the brain that participate in the control of somatic motor activities.What feature does number 1 indicate?

Accepted Answer

A)  Primary motor cortex
B)  Motor association areas
C)  Pontine nuclei of the indirect system
D)  Pyramidal system
E)  Lower motor neuronsF) B) and E)
G) A) and C)

Question 12

Which pathway does not use tertiary neurons?

Accepted Answer

A)  Fasciculus cuneatus
B)  Fasciculus gracilis
C)  Lateral spinothalamic
D)  Anterior spinothalamic
E)  Anterior spinocerebellarF) A) and C)
G) A) and E)

Question 13

Complex unconscious motor patterns are controlled by neurons in various locations.The ones that control sudden startled movements due to visual or auditory stimuli are located in the

Accepted Answer

A)  mesencephalon.
B)  cerebellum.
C)  hypothalamus.
D)  cerebral nuclei.
E)  medulla oblongata.F) All of the above
G) C) and E)

Question 14

The different tracts within indirect motor pathways are grouped according to their primary functions.The lateral pathway controls

Accepted Answer

A)  muscle tone and gross movements of the muscles of the head,neck,proximal limb,and trunk.
B)  precise,discrete movements and tone in flexor muscles of the limbs.
C)  heartbeat and blood pressure.
D)  respiratory rhythm and CO2 levels.
E)  smooth muscle contraction in the viscera.F) B) and E)
G) A) and D)

Question 15

This part of the brain is responsible for alerting the cerebrum to incoming sensory information.

Accepted Answer

A)  Sensory component of the reticular formation
B)  Prefrontal cortex
C)  Motor component of the reticular formation
D)  Amygdaloid body
E)  HypothalamusF) D) and E)
G) A) and C)

Question 16

-What type of information is conducted by the pathway indicated by number 2?

Accepted Answer

A)  Proprioceptive
B)  Visceral motor
C)  Autonomic motor
D)  Crude touch and pressure
E)  PainF) B) and E)
G) All of the above

Question 17

Motor pathways are ascending pathways in the brain and spinal cord that control the activities of skeletal muscle.

Accepted Answer

A) True 
 B)False

Question 18

The medial pathway of the indirect motor pathway consists of three groups of tracts.The one that helps to regulate positional changes of the arms,eyes,head,and neck as a consequence of visual and auditory stimuli is the

Accepted Answer

A)  reticulospinal tract.
B)  tectospinal tract.
C)  vestibulospinal tract.D) All of the above
E) B) and C)

Question 19

Which somatic motor pathway originates in the pyramidal cells of the primary motor cortex?

Accepted Answer

A)  Direct pathway
B)  Indirect pathwayC) A) and B)
D) undefined

Question 20

Which is a condition in which a person finds it virtually impossible to process and/or store ongoing events?

Accepted Answer

A)  Korsakoff psychosis
B)  Anterograde amnesia
C)  Retrograde amnesia
D)  Prosttraumatic amnesia
E)  Hysterical amnesiaF) A) and B)
G) A) and C)

Exam 17: Pathways and Integrative Functions

Only a fraction of our sensory impulses reach our conscious awareness.

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-This figure shows regions of the brain that participate in the control of somatic motor activities.What feature does number 1 indicate?

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The different tracts within indirect motor pathways are grouped according to their primary functions.The lateral pathway controls

Correct AnswerverifiedShow Answer

Motor pathways are ascending pathways in the brain and spinal cord that control the activities of skeletal muscle.

Correct AnswerverifiedShow Answer

Which is a condition in which a person finds it virtually impossible to process and/or store ongoing events?

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-This figure shows the anterolateral pathway.What structure does number 2 indicate?

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Which pathway does not use tertiary neurons?

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A transient ischemic attack (TIA)is more serious than a cerebrovascular accident (CVA).

Correct AnswerverifiedShow Answer

Complex unconscious motor patterns are controlled by neurons in various locations.The ones that control sudden startled movements due to visual or auditory stimuli are located in the

Correct AnswerverifiedShow Answer

A nucleus is defined as a collection of neuron cell bodies located within the PNS.

Correct AnswerverifiedShow Answer

Over 90 percent of nervous system pathways decussate.What does "decussate" mean?

Correct AnswerverifiedShow Answer

-What type of information is conducted by the pathway indicated by number 2?

Correct AnswerverifiedShow Answer

This part of the brain is responsible for alerting the cerebrum to incoming sensory information.

Correct AnswerverifiedShow Answer

The inability to perform coordinated body movements is called

Correct AnswerverifiedShow Answer

A descending pathway carries

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-This figure shows motor pathways.What tract does number 5 indicate?

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All incoming impulses are sent to the brain for detailed processing.

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The medial pathway of the indirect motor pathway consists of three groups of tracts.The one that helps to regulate positional changes of the arms,eyes,head,and neck as a consequence of visual and auditory stimuli is the

Correct AnswerverifiedShow Answer

Which somatic motor pathway originates in the pyramidal cells of the primary motor cortex?

Correct AnswerverifiedShow Answer

-In this partially cut-away brain diagram,what structure does number 2 indicate?

Correct AnswerverifiedShow Answer

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