Question
A patient has decreased sensation over the tip of the index and middle finger, he has the weakness of finger flexors – (PIP and DIP Flexion of the index and middle finger are weak ) the nerve involved is:
| A. |
Ulnar
|
| B. |
Median
|
| C. |
Radial
|
| D. |
posterior interosseous nerve
|
Show Answer
|
Correct Answer � B
Explanation
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|
Autonomous zones of nerves are
• Median nerve –Tip of the index finger and middle finger.
• Ulnar nerve –the tip of the little finger.
• Radial nerve – Dorsum of 1st webspace.
• The index and middle finger flexion are carried out by Flexor Digitorum Profundus supplied by anterior interosseous nerve (AIN) is the terminal motor branch of the median nerve
