If a muscle crosses the spinal joints of the trunk anteriorly with a vertical direction to its fibers,what eccentric function will it most likely have?
A)restrains/slows flexion of the trunk at the spinal joints
B)restrains/slows extension of the trunk at the spinal joints
C)restrains/slows lateral flexion of the trunk at the spinal joints
D)restrains/slows contralateral rotation of the trunk at the spinal joints

Question

Quizplus · Accepted Answer

Muscles that cross anterior to the spinal joints and have a vertical fiber direction primarily act to flex the trunk. Therefore, their eccentric function would be to control or slow down the opposite movement, which is extension of the trunk at the spinal joints.

If a Muscle Crosses the Spinal Joints of the Trunk