Skeletal muscles are arranged in antagonistic pairs. What does this mean and what is an example?
A. There are always paired tendons and ligaments; the hip joint.
B. When one sarcomere contracts, the neighboring one relaxes; triceps and biceps.
C. One is under conscious control and one is not; the diaphragm and ribs.
D. There is always paired cartilage and muscle tissue; the knee joint.
E. When one contracts, the other relaxes and this allows the bones to move; triceps and biceps.