Question
Lesion of marked structure leads to
| A. |
Loss of sensation of tip of index finger dorsal side
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| B. |
Loss of sensation of hypothenar muscles
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| C. |
Loss of sensation of At the tip of radial bone
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| D. |
Loss of sensation of 4th interdigital cleft
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Show Answer
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Correct Answer � A
Explanation
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Answer: A. Loss of sensation of tip of index finger dorsal side
* Marked structure is median nerve in the cubital fossa
* The median nerve controls the majority of the muscles in the forearm.
* It controls abduction of the thumb, flexion of hand at wrist, flexion of the distal phalanx of the fingers, is the sensory nerve for the first three fingers, etc.
* Because of this major role of the median nerve, it is also called the eye of the hand.
* If the median nerve is damaged, the ability to abduct and oppose the thumb may be lost due to paralysis of the thenar muscles.
