Motor System

Question 1 of 15

1

The extrapyramidal system is the system involved in execution of movement.

Select one of the following:

True
False

Explanation

Question 2 of 15

1

The planning area for movement is a region of the cortex anterior to the primary motor cortex.

Select one of the following:

True
False

Explanation

Question 3 of 15

1

In the somatosensory cortex homunculus, the neurons that initate movement in the ❌ lie in the medial cortex and the neurons that initiate movement in the ❌ lie in the lateral cortex.

Drag and drop to complete the text.

leg and foot

arms and hands

face and arm

foot and leg

Explanation

Question 4 of 15

1

Which area is not represented with an increase in size in the somatosensory homunculus?

Select one of the following:

Tongue
Fingers
Trunk
Nose

Explanation

Question 5 of 15

1

A single anterior horn cell (AHC) and all the muscle fibers it innervates is called a "motor unit."

Select one of the following:

True
False

Explanation

Question 6 of 15

1

Label Corticospinal tract

Drag an answer into the correct orange point.

Corticospinal Fibers

Upper motor neurons

Anterior horn

Corticospinal Fiber

Lateral corticospinal tract

Muscle Fibers

Cervical vertebrae

AHC

Caudal medulla

Lower motor neuron

Upper motor neuron

Lateral spinal tract

Pyramidal decussation

Anterior horn cells (AHC)

Medulla

Primary motor cortex

Primary motor fiber

Pyramidal Decussation

Explanation

Question 7 of 15

1

Neurons in the primary motor cortex initiate movement of the contralateral side of the body.

Select one of the following:

True
False

Explanation

Question 8 of 15

1

Select from the dropdown lists to complete the text.

A lesion of the lateral corticospinal tract at the upper cervical cord results in ( ipsilateral, contralateral ) weakness of the whole left side of the body. A lesion involving the corticospinal tract in the right hemisphere of the brain results in ( right-sided, left-sided ) weakness.

Explanation

Question 9 of 15

1

Upper motor neuron lesions result in:

Select one or more of the following:

Babinsky sign
Spasticity
Hypotonia and hyporeflexia
Hypertonia and hyperreflexia
Clonus
Fasciculations

Explanation

Question 10 of 15

1

Which of the following is NOT a typical result of a lower motor neuron lesion?

Select one of the following:

Fasciculations and fibrillations
Can affect a single muscle
Toe goes up on touching bottom of foot
Decreased muscle tone

Explanation

Question 11 of 15

1

Extrapyramidal motor system is similar to the pyramidal system in that both send projections to anterior horn cells in the spinal cord.

Select one of the following:

True
False

Explanation

Question 12 of 15

1

Nuclei in the extrapyramidal motor system include:

Select one or more of the following:

Medial pre-optic area
Substantia nigra
Subthalamic nucleus
Basal ganglia
Septal nuclei

Explanation

Question 13 of 15

1

What is an autosomal dominant genetic disease that causes a loss of neurons in the caudate and putamen involved in the indirect pathway?

Select one of the following:

Huntington's chorea
Hemiballismus
Parkinson's disease
Myasthenia gravis

Explanation

Question 14 of 15

1

Hemiballismus is caused by:

Select one of the following:

A decreased excitatory drive of the cortex
The subthalamic nucleus stops working resulting in less activation of the globus pallidus, less inhibition of the motor nuclei of the thalamus (VA/VL), and excessive excitatory input to the motor cortex
Disinhibition via decrease in GABA and increase in glutamate in the motor cortex

Explanation

Question 15 of 15

1

Loss of dopamine from substantia nigra can result in which of the following clinical features?

Select one or more of the following:

Bradykinesia
Resting tremor
Flinging arm movements
Shuffling gait
Transcortical motor aphasia
Decreased affect

	Created by Bethany Carter over 6 years ago

Nursing Quiz on Motor System, created by Bethany Carter on 14/02/2018.

Motor System

Question 1 of 15

The extrapyramidal system is the system involved in execution of movement.

Select one of the following:

Explanation

Question 2 of 15

The planning area for movement is a region of the cortex anterior to the primary motor cortex.

Select one of the following:

Explanation

Question 3 of 15

In the somatosensory cortex homunculus, the neurons that initate movement in the ❌ lie in the medial cortex and the neurons that initiate movement in the ❌ lie in the lateral cortex.

Drag and drop to complete the text.

Explanation

Question 4 of 15

Which area is not represented with an increase in size in the somatosensory homunculus?

Select one of the following:

Explanation

Question 5 of 15

A single anterior horn cell (AHC) and all the muscle fibers it innervates is called a "motor unit."

Select one of the following:

Explanation

Question 6 of 15

Label Corticospinal tract

Drag an answer into the correct orange point.

Explanation

Question 7 of 15

Neurons in the primary motor cortex initiate movement of the contralateral side of the body.

Select one of the following:

Explanation

Question 8 of 15

Select from the dropdown lists to complete the text.

Explanation

Question 9 of 15

Upper motor neuron lesions result in:

Select one or more of the following:

Explanation

Question 10 of 15

Which of the following is NOT a typical result of a lower motor neuron lesion?

Select one of the following:

Explanation

Question 11 of 15

Extrapyramidal motor system is similar to the pyramidal system in that both send projections to anterior horn cells in the spinal cord.

Select one of the following:

Explanation

Question 12 of 15

Nuclei in the extrapyramidal motor system include:

Select one or more of the following:

Explanation

Question 13 of 15

What is an autosomal dominant genetic disease that causes a loss of neurons in the caudate and putamen involved in the indirect pathway?

Select one of the following:

Explanation

Question 14 of 15

Hemiballismus is caused by:

Select one of the following:

Explanation

Question 15 of 15

Loss of dopamine from substantia nigra can result in which of the following clinical features?

Select one or more of the following:

Explanation