Question 1

Input to the cerebellum from the spinal cord travels to the cerebellum in the:

Accepted Answer

A)  inferior cerebellar peduncle
B)  middle cerebellar peduncle
C)  superior cerebellar peduncle
D)  extrapyramidal tractE) B) and C)
F) None of the above

Question 2

A patient with ideomotor apraxia will have difficulty performing a motor act in response to a verbal command.

Accepted Answer

A) True 
 B)False

Question 3

The ___ of the cerebellum is responsible for regulating posture.

Accepted Answer

A)  vermis
B)  flocculonodular lobe
C)  anterior lobe
D)  posterior lobe
E)  pedunclesF) C) and D)
G) All of the above

Question 4

__ is a dyskinesia resulting from an extrapyramidal disorder that does not involve the speech musculature.

Accepted Answer

A)  Dystonia
B)  Athetosis
C)  Myoclonus
D)  Chorea
E)  AkathisiaF) A) and D)
G) C) and D)

Question 5

An 18-year-old man is in an accident that results in a profound hearing loss.As would be expected,he does not lose his ability to speak.This example provides support for:

Accepted Answer

A)  speech as an open-loop system
B)  speech as a closed-loop system
C)  feedforward control of speech
D)  both A and B
E)  both A and CF) B) and C)
G) All of the above

Question 6

A motor unit:

Accepted Answer

A)  is an alpha motor neuron and all the muscles it innervates
B)  is an alpha motor neuron and all the muscle fibers it innervates
C)  supplies myotrophic factors to the muscle
D)  is a group of alpha motor neurons innervating a muscleE) All of the above
F) None of the above

Question 7

A young girl can raise her eyebrows independently of each other.This is possible because of a predominantly bilateral upper motor neuron innervation to the lower motor neurons in the upper face.

Accepted Answer

A) True 
 B)False

Question 8

One similarity between the corticospinal and corticonuclear fibers is that:

Accepted Answer

A)  both sets of fibers pass through the posterior limb of the internal capsule
B)  both fibers originate at the cortex
C)  they are both largely composed of contralateral fibers
D)  they both terminate on lower motor neurons in the spinal cordE) A) and B)
F) A) and C)

Question 9

A wide stance and swaggering gait are symptoms of:

Accepted Answer

A)  dysmetria
B)  ataxia
C)  adiadochokinesia
D)  rebound
E)  nystagmusF) A) and B)
G) D) and E) B

Question 10

Which of the following is NOT included in the extrapyramidal system?

Accepted Answer

A)  corticonuclear tract
B)  subthalamic nucleus
C)  tectospinal tract
D)  basal ganglia
E)  red nucleusF) A) and D)
G) D) and E)

Question 11

Muscle spindles:

Accepted Answer

A)  receive efferent innervation
B)  provide afferent information on the state of muscle contraction
C)  are found in abundance in fast twitch fibers
D)  are found in abundance in muscles of articulation
E)  both A and BF) A) and D)
G) B) and D) E

Question 12

Which of the following areas would become more paralyzed after a unilateral lesion?

Accepted Answer

A)  the diaphragm
B)  the muscles that move the eye
C)  the muscles of the lower face
D)  the jaw
E)  the laryngeal musclesF) D) and E)
G) A) and B)

Question 13

The supplementary motor area:

Accepted Answer

A)  programs novel movement sequences
B)  fixates the shoulders in preparation for speech
C)  responds to cues from outside the central nervous system
D)  is involved in initiating movements
E)  none of the aboveF) None of the above
G) C) and D)

Question 14

All of the following are characteristics of the extrapyramidal system EXCEPT:

Accepted Answer

A)  Its effect on neurons is largely inhibitory.
B)  It is involved in stereotypical movements.
C)  It has most of its influence in midline (axial) muscles than in distal muscles.
D)  It is involved in the conscious control of movement.
E)  It has a large role in maintaining muscle tonE.F) B) and E)
G) A) and E)

Question 15

A lesion in which of these locations in the corticospinal tract would lead to paralysis on the ipsilateral side?

Accepted Answer

A)  crus cerebri
B)  internal capsule
C)  lower motor neuron
D)  corona radiata
E)  primary motor cortexF) A) and C)
G) C) and D)

Question 16

The size of a motor unit is independent of muscle strength and control.

Accepted Answer

A) True 
 B)False

Question 17

Hypokinesia:

Accepted Answer

A)  is the development of excessive muscle tone
B)  is restricted to disorders that result in hemiplegia
C)  is the development of involuntary movements
D)  is a type of dyskinesiaE) A) and D)
F) B) and C)

Question 18

___ is characterized by slow,irregular,writhing movements of the extremities,face,neck,and trunk.

Accepted Answer

A)  Myoclonus
B)  Athetosis
C)  Dystonia
D)  Chorea
E)  An action tremorF) A) and C)
G) C) and D)

Question 19

Which of the following is NOT a function of the cerebellum?

Accepted Answer

A)  helping to guide rapid,alternating,repetitive movements
B)  assisting in maintenance of posture
C)  inhibiting sensory and motor impulses
D)  modulating neural function
E)  All of these are functions of the cerebellum.F) All of the above
G) A) and B) E

Question 20

The cerebral cortex projects input to the __ of the basal ganglia.

Accepted Answer

A)  globus palladus internal
B)  putamen
C)  globus palladus external
D)  caudate nucleus
E)  both B and DF) A) and B)
G) C) and E)

Exam 6: Neuromotor Control of Speech

Input to the cerebellum from the spinal cord travels to the cerebellum in the:

Correct AnswerverifiedShow Answer

A patient with ideomotor apraxia will have difficulty performing a motor act in response to a verbal command.

Correct AnswerverifiedShow Answer

The ___ of the cerebellum is responsible for regulating posture.

Correct AnswerverifiedShow Answer

__ is a dyskinesia resulting from an extrapyramidal disorder that does not involve the speech musculature.

Correct AnswerverifiedShow Answer

An 18-year-old man is in an accident that results in a profound hearing loss.As would be expected,he does not lose his ability to speak.This example provides support for:

Correct AnswerverifiedShow Answer

A motor unit:

Correct AnswerverifiedShow Answer

A young girl can raise her eyebrows independently of each other.This is possible because of a predominantly bilateral upper motor neuron innervation to the lower motor neurons in the upper face.

Correct AnswerverifiedShow Answer

One similarity between the corticospinal and corticonuclear fibers is that:

Correct AnswerverifiedShow Answer

A wide stance and swaggering gait are symptoms of:

Correct AnswerverifiedB

Which of the following is NOT included in the extrapyramidal system?

Correct AnswerverifiedShow Answer

Muscle spindles:

Correct AnswerverifiedE

Which of the following areas would become more paralyzed after a unilateral lesion?

Correct AnswerverifiedShow Answer

The supplementary motor area:

Correct AnswerverifiedShow Answer

All of the following are characteristics of the extrapyramidal system EXCEPT:

Correct AnswerverifiedShow Answer

A lesion in which of these locations in the corticospinal tract would lead to paralysis on the ipsilateral side?

Correct AnswerverifiedShow Answer

The size of a motor unit is independent of muscle strength and control.

Correct AnswerverifiedShow Answer

Hypokinesia:

Correct AnswerverifiedShow Answer

___ is characterized by slow,irregular,writhing movements of the extremities,face,neck,and trunk.

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the cerebellum?

Correct AnswerverifiedE

The cerebral cortex projects input to the __ of the basal ganglia.

Correct AnswerverifiedShow Answer

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B

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E

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E

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