Motion will occur in a muscle when the _____ supplied exceeds the _____.
A)effort,load
B)resistance,lever
C)load,effort
D)load,resistance
E)lever,effort

Question

Quizplus · Accepted Answer

The concept of muscle motion is based on the principle of work. Work is done when a force (effort) overcomes a resistance (load) to produce motion. In the case of muscle motion, the effort is the force generated by the muscle fibers while the load is the force that opposes the motion, such as the weight being lifted. Therefore, for motion to occur, the force (effort) generated by the muscle must overcome the resistance (load) being lifted, and this is represented by choice A, where effort is greater than the load.

Motion Will Occur in a Muscle When the _____ Supplied