Question

Pen Test is for which nerve

• A. Median Nerve
• B. Ulnar nerve
• C. PIN
• D. Musculocutaneous

Answer 1

The Correct Option is A

The Pen Test is used to assess the function of the Median Nerve. The Median Nerve is one of the major nerves in the arm and is responsible for the innervation of certain muscles and sensations in the hand.

Option	Nerve Description
Median Nerve	The Median Nerve controls muscles in the forearm and parts of the hand, crucial for wrist and finger flexion.
Ulnar Nerve	Innervates muscles in the hand and provides sensation to the fourth and fifth fingers.
PIN	The Posterior Interosseous Nerve primarily affects the extensors of the wrist and fingers.
Musculocutaneous	Responsible for innervating the muscles in the anterior compartment of the arm.

Thus, the correct answer to the question of which nerve the Pen Test is for, based on its functions and areas of innervation, is the Median Nerve.