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The Motor System. Neuro Quiz. Identify the correct question. Click to Play!.  Michael McKeough 2008. Motor System Neuro Quiz. Click category value to begin. Click to reveal the question. Dorsolateral Motor System 100. Learned, willed, skilled movements, particularly of the hand. .

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  1. The Motor System Neuro Quiz Identify the correct question Click to Play!  Michael McKeough 2008

  2. Motor SystemNeuro Quiz Click category value to begin.

  3. Click to reveal the question Dorsolateral Motor System 100 • Learned, willed, skilled movements, particularly of the hand. What are the types of movement (functions) controlled by the dorsolateral motor system? Return to Game Board

  4. Click to reveal the question Dorsolateral Motor System200 • The cell bodies ofthese neurons are located in somatically organized areas of the precentral gyrus. • The axons of these neurons travel in the lateral corticospinal tract. What are upper motor neurons? Return to Game Board

  5. Click to reveal the question Dorsolateral Motor System 300 • The cell bodies ofthese neurons are located in somatically organized areas of the ventral horn. • The axons of these neurons travel in the peripheral nervous system and innervate skeletal muscle. What are lower motor neurons? Return to Game Board

  6. Click to reveal the question Dorsolateral Motor System 400 • Upper motor neurons cross the midline (decussate) after passing through this structure. What is the medullary pyramid? Return to Game Board

  7. Click to reveal the question Dorsolateral Motor System 500 • Approximately 10% of upper motor neurons have this relationship with lower motor neurons. What are monosynaptic connections? Return to Game Board

  8. Click to reveal the question Ventromedial Motor System 100 • These are the types of movement (functions) controlled by the ventromedial motor system. What are tone, posture, and associative movement? Return to Game Board

  9. Click to reveal the question Ventromedial Motor System 200 • These tracts comprise the ventromedial motor system. What are the tectospinal, reticulospinal, vestibulospinal, and ventral (anterior) corticospinal tracts? Return to Game Board

  10. Click to reveal the question Ventromedial Motor System 300 • Uppermotor neurons in the ventromedial motor system terminate here. What are the ventromedial lower motor neuron pools, bilaterally? Return to Game Board

  11. Click to reveal the question Ventromedial Motor System 400 • This tract is located in the anterior column (funiculus) and consists of upper motor neurons originating in the ipsilateral primary motor cortex. What is the ventral (anterior) corticospinal tract? Return to Game Board

  12. Click to reveal the question Ventromedial Motor System 500 This pathway originates in the brainstem, descends in the lateral column (funiculus) and is concerned with the control of posture (particularly extensor muscles) as well as the coordination of head and eye movement. What is the lateral vestibulospinal tract? Return to Game Board

  13. Click to reveal the question Motor Neurons 100 • They convey movement commands from motor control centers in the cortex and brainstem to lower motor centers located at segmental levels of the neuraxis. What are upper motor neurons ? Return to Game Board

  14. Click to reveal the question Motor Neurons 200 • They are located in the peripheral nervous system and convey movement commands from cranial nerve nuclei or the ventral horn of the spinal cord to skeletal muscle in the head and body, respectively. What are lower motor neurons? Return to Game Board

  15. Click to reveal the question Motor Neurons300 • They are located in the peripheral nervous system and convey movement commands from cranial nerve nuclei or the ventral horn of the spinal cord toextrafusal muscle fibersin the head and body, respectively. What are alpha lower motor neurons? Return to Game Board

  16. Click to reveal the question Motor Neurons 400 • They are located in the peripheral nervous system and convey movement commands from segmental motor control centers to intra- and extrafusal muscles fibers, simultaneously. • They couple the alpha and gamma motor systems • They are more common in reptiles than mammals. What are beta lower motor neurons? Return to Game Board

  17. Click to reveal the question Motor Neurons 500 They increase the sensitivity of intrafusal muscles fibers to the phasic portion of a change in muscle length. What are dynamic gamma motor neurons? Return to Game Board

  18. Click to reveal the question Miscellaneous 100 • This physiological mapping of the cortex depicts a distorted representation of the body. • Body parts are portrayed proportional to the amount of brain space dedicated to the control of movement of that body part. What is the motor homunculus? Return to Game Board

  19. Click to reveal the question Miscellaneous200 • This spinal pathway originates in the contralateral cerebral cortex and is concerned with the control of manipulation and fractionated movement of distal limb segments (particularly the hand). What is the lateral corticospinal tract? Return to Game Board

  20. Click to reveal the question Miscellaneous300 • This pathology causes brain damage that produces limitations in the ability to move due to paresis and spasticity. • The movement deficits caused by this pathology appear on the side of the body opposite the brain damage. What is a stroke or cerebrovascular accident? Return to Game Board

  21. Click to reveal the question Miscellaneous400 • The type of hand movement controlled by the corticospinal tract. • Independent control of individual digits including terminal opposition of the thumb and individual digits. What is the fractionated movement? Return to Game Board

  22. Click to reveal the question Miscellaneous500 • This system auto-regulates (reflexively) joint position. • This system provides feedback about the alpha motor system (muscle tension and muscle length). What is the gamma motor system? Return to Game Board

  23. Click to reveal the question Motor Control Centers100 • Located in the precentral gyrus. • Somatotopically organized. • Controls learned, willed, skilled movements of the contralateral body. What is the primary motor cortex? Return to Game Board

  24. Click to reveal the question Motor Control Centers200 • Located in the cortex of the frontal lobe. • Responsible for controlling voluntary eye movement. What is the frontal eye field? Return to Game Board

  25. Click to reveal the question Motor Control Centers300 • Located in the cortex of the frontal lobe, usually in the left hemisphere. • Responsible for speech production. • Lesions here cause non-fluent (productive) aphasia. What is Brocha’s area? Return to Game Board

  26. Click to reveal the question Motor Control Centers400 Located at the base of the telencephalon in both hemispheres. Responsible for controlling initiation, termination, and scaling of internally generated movements. Lesions here cause Parkinson's disease. What are the basal ganglia? Return to Game Board

  27. Click to reveal the question Motor Control Centers500 • Located on the dorsal surface of the brainstem. • Responsible for the timing and coordination of complex movements and detecting movement errors. What is the cerebellum? Return to Game Board

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