Which of the following is a general rule regarding muscle function?
A)if a muscle crosses a joint,it can have an action at that joint
B)if a muscle crosses a joint,it can have an action at the adjacent joint
C)if a muscle does not cross a joint,it can have an action at that joint
D)if a muscle crosses two joints,it can have an action at only one of those joints

Question

Quizplus · Accepted Answer

A general rule regarding muscle function is that if a muscle crosses a joint, it can have an action at that joint. This is because muscle contraction produces movement at the joint it crosses. Therefore, muscles that cross multiple joints can have actions at each joint, and muscles that do not cross any joints cannot produce movement at any joint.

Which of the Following Is a General Rule Regarding Muscle