Question 1

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 2

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) D) and E)
G) C) and D)

Question 3

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) All of the above
G) None of the above

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

-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) A) and B)
G) D) and E)

Question 6

-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) A) and D)
G) All of the above

Question 7

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) B) and D)
G) B) and C)

Question 8

-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) D) and E)
G) B) and E)

Question 9

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) A) and B)
E) A) and C)

Question 10

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 C)
G) D) and E)

Question 11

-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) C) and E)
G) B) and C)

Question 12

The inability to perform coordinated body movements is called

Accepted Answer

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

Question 13

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 E)
G) B) and E)

Question 14

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 15

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

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

-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) A) and B)
G) A) and D)

Question 19

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) C) and D)
G) D) and E)

Question 20

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) All of the above
G) C) and D)

Exam 17: Pathways and Integrative Functions

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

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The inability to perform coordinated body movements is called

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

Correct AnswerverifiedShow Answer

Which pathway does not use tertiary neurons?

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

A descending pathway carries

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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