Motor Pathways Exam Questions and
Answers Graded A+
Would damage to γ-motor neurons result in an inability to contract the muscle? -
Correct answer-No, damage of Y-muscles would not cause inability to contract
muscles but the alpha neurons will lose the sensibility because Y neurons cause
stretchability of alpha motor neurons during muscle contraction
Which of the following correctly matches the motor neuron type with the muscle
fiber type it innervates? - Correct answer-y-motor neurons - intrafusal skeletal
muscle fibers
a-motor neurons - extrafusal skeletal muscle fibers
A ________ motor unit will innervate ________ muscle fibers. - Correct answer-
large ; many
small ; few
Infants are monitored for their developmental milestones at each visit to the doctor.
One of the most notable milestones when dealing with motor function is the
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, development of the pincher grasp, in which the baby is able to use his or her finger
and thumb to grab a small object. How does this relate to the concept of motor
units? - Correct answer-It is related to the hand, eye and muscle motor skills
Lower motor neurons originate in what portion of the spinal cord? - Correct
answer-ventral horns
The upper motor neurons of the motor pathways will originate in the following
areas of the brain except for the ________. - Correct answer-basal nuclei
How would motor memory help in learning a new motor task similar to another
motor task that you are familiar with? - Correct answer-There is a dynamic process
which exists through the old motor tasks interact permanently with the new motor
tasks. The learning process helps in storing the motor task into the long term
memory. Stored motor tasks are utilized in planning, anticipating, learning &
adapting new motor task. Therefore, the interplay between stored long term
memories & the new motor tasks contribute to the motor memory in learning new
motor tasks
The ________ the upper motor neural impulses to prevent excessive unnecessary
muscle movements. - Correct answer-basal nuclei inhibit
Sort these events in order of the direct pathway of muscle movement. - Correct
answer-- the striatum releases GABA
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Answers Graded A+
Would damage to γ-motor neurons result in an inability to contract the muscle? -
Correct answer-No, damage of Y-muscles would not cause inability to contract
muscles but the alpha neurons will lose the sensibility because Y neurons cause
stretchability of alpha motor neurons during muscle contraction
Which of the following correctly matches the motor neuron type with the muscle
fiber type it innervates? - Correct answer-y-motor neurons - intrafusal skeletal
muscle fibers
a-motor neurons - extrafusal skeletal muscle fibers
A ________ motor unit will innervate ________ muscle fibers. - Correct answer-
large ; many
small ; few
Infants are monitored for their developmental milestones at each visit to the doctor.
One of the most notable milestones when dealing with motor function is the
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, development of the pincher grasp, in which the baby is able to use his or her finger
and thumb to grab a small object. How does this relate to the concept of motor
units? - Correct answer-It is related to the hand, eye and muscle motor skills
Lower motor neurons originate in what portion of the spinal cord? - Correct
answer-ventral horns
The upper motor neurons of the motor pathways will originate in the following
areas of the brain except for the ________. - Correct answer-basal nuclei
How would motor memory help in learning a new motor task similar to another
motor task that you are familiar with? - Correct answer-There is a dynamic process
which exists through the old motor tasks interact permanently with the new motor
tasks. The learning process helps in storing the motor task into the long term
memory. Stored motor tasks are utilized in planning, anticipating, learning &
adapting new motor task. Therefore, the interplay between stored long term
memories & the new motor tasks contribute to the motor memory in learning new
motor tasks
The ________ the upper motor neural impulses to prevent excessive unnecessary
muscle movements. - Correct answer-basal nuclei inhibit
Sort these events in order of the direct pathway of muscle movement. - Correct
answer-- the striatum releases GABA
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
