When a muscle contracts, it performs work. It does this by
A)converting chemical energy to mechanical energy.
B)converting mechanical energy into heat energy.
C)converting mass into energy.
D)creating energy.
what is the largst muscle in the muscular system
The muscle that causes a joint to straighten when it contracts are the extensor muscles. These include the triceps that work with the biceps to extend the arm.
the muscles and the bone work together and attached
A muscle becomes shorter when it contracts.
When a muscle contracts, it shortens in length.
A muscle that contracts shortens whereas a muscle that relaxes lengthens.
When the subscapularis muscle contracts concentrically, it performs internal rotation of the shoulder joint. This movement involves rotating the arm inward toward the midline of the body.
the answer is when one muscle contracts the other relaxes
When a muscle contracts, it pulls with a force generated by the muscle fibers contracting and shortening.
the heart is a muscle that expands and contracts or pumps blood throughout the body.
they are pairs of muscle that work together alternating. they need each other because no muscle can stretch a so the other mucle contracts.
When one muscle in a pair contracts the other expands.