It is not possible for a muscle to cause more than one action in an associated joint.

Name: It is not possible for a muscle to cause more than one action in an associated joint.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Many muscles can cause multiple actions at an associated joint depending on the direction of the force applied and the position of the joint at the time of muscle contraction. For example, the biceps brachii muscle can both flex the elbow and supinate the forearm.

It Is Not Possible for a Muscle to Cause More