Mallet Finger primarily affects which tendon?

Mallet Finger occurs when there is an injury to the extensor tendon that straightens the end joint of a finger. This injury typically results from a forceful impact, causing the distal phalanx to be forced into a flexed position. The extensor tendon becomes disrupted at its insertion point on the distal phalanx, which prevents the individual from being able to extend the fingertip.

Understanding the role of the extensor tendon is crucial, as it facilitates the extension of the fingers and is essential for proper hand function. In the context of Mallet Finger, the inability to fully extend the finger at the distal interphalangeal joint is a direct consequence of this extensor tendon injury, leading to the characteristic drooping appearance of the fingertip.

Thus, the correct answer regarding which tendon is primarily affected in Mallet Finger is indeed the extensor tendon.