If a muscle crosses the metacarpophalangeal and/or interphalangeal joints of the fingers anteriorly,what will its eccentric function of the fingers be?
A)restrains/slows flexion
B)restrains/slows extension
C)restrains/slows abduction
D)restrains/slows adduction

Question

Quizplus · Accepted Answer

Muscles that cross the metacarpophalangeal and/or interphalangeal joints of the fingers anteriorly primarily function in flexion of these joints. Therefore, their eccentric function (when the muscle lengthens under tension) would be to restrain or slow down the opposite motion, which is extension.

If a Muscle Crosses the Metacarpophalangeal And/or Interphalangeal Joints of the Fingers