If a muscle crosses the metacarpophalangeal and interphalangeal joints of fingers two through five on the palmar (anterior)side with a vertical orientation to its fibers,what will its eccentric function most likely be?

Question

Quizplus · Accepted Answer

Muscles that cross a joint on the anterior side and have a primary function of flexion will eccentrically control or slow down the opposite motion, which is extension. Therefore, if a muscle crosses the metacarpophalangeal and interphalangeal joints on the palmar side, its eccentric function would most likely be to restrain or slow down the extension of the fingers at these joints.

If a Muscle Crosses the Metacarpophalangeal and Interphalangeal Joints of Fingers