From the key choose the name of the tract that might be damaged when the followi

Question

From the key choose the name of the tract that might be damaged when the following conditions are ovserved.
Key: a.) fasciculus cuneatus b.) fasciculus gracilis c.) lateral corticospinal tract d.) anterior corticospinal tract d.) anterior corticospinal tract e.) tectospinal tract f.) rubrospinal tract g.)vestibulospinal tract h.) lateral spinothalamic tract i.) anterior spinothalamic tract j.) posterior spinocerebellar tract k.) anterior spinocerebellar tract

1. uncoordinated movement
2. lack of voluntary movement
3. tremors, jerky movements
4. diminished pain perception
5. diminished sense of touch

Explanation / Answer

1. uncoordinated movement

-anterior and posterior spinocerebellar tract since they transmit unconscious proprioception, and fasciculus cuneatus and gracilis since they transmit conscious proprioception.

2. lack of voluntary movement

-lateral corticospinal tract -this would be the most major one
anterior corticospinal tract - to a lesser extent
a lesion of the rubrospinal tract would affect voluntary movement but not cause a lack of it.

3. tremors, jerky movements

- posterior and anterior spinocerebellar tract since they transmit unconscious proprioception, and fasciculus cuneatus and gracilis since they transmit conscious proprioception.

4. diminished pain perception
-lateral spinothalamic tract

5. diminished sense of touch

-anterior spinothalamic if crude touch
fasciculus cuneatus, fasciculus gracilis if light touch

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