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Upper Motor Neuron & Corticospinal Tract – 20 MCQ Quiz
Upper Motor Neuron, Corticospinal Tract & Spinal Cord Quiz

20 Questions | 1 mark each | Total = 20 marks
Select the best answer for each question.
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1. The corticospinal tract primarily originates from which cortical area? *
2. In the motor homunculus, the representation of the foot and leg is mainly located on the: *
3. Broca's motor speech area is located predominantly in the: *
4. Which cortical lesion can produce astereognosis? *
5. The corticospinal fibers descend from the cerebral cortex initially through the: *
6. The internal capsule is divided by the lentiform nucleus into: *
7. The internal capsule is especially vulnerable to stroke because it contains: *
8. The major corticospinal fibers pass through which part of the midbrain? *
9. The corticospinal fibers descend through which major part of the brainstem after the midbrain? *
10. Most corticospinal fibers cross to the opposite side at the: *
11. The crossed corticospinal tract descends in the: *
12. A lesion of the corticospinal tract above the pyramidal decussation usually produces: *
13. A hemisection of the spinal cord produces ipsilateral motor and proprioceptive loss with contralateral pain and temperature loss. This is called: *
14. In Brown-Séquard syndrome, ipsilateral loss of proprioception occurs because the dorsal column pathway: *
15. In Brown-Séquard syndrome, contralateral loss of pain and temperature is due to involvement of the: *
16. The corticospinal tract ultimately synapses mainly on which neuron in the spinal cord? *
17. The cell body of a typical lower motor neuron supplying skeletal muscle is located in the: *
18. The axon of an anterior horn cell ultimately reaches skeletal muscle through the: *
19. The junction between the motor nerve terminal and skeletal muscle fiber is called the: *
20. A lesion of the lower motor neuron is most likely to produce: *
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