Bending a joint requires
A)relaxation of extensors and flexors.
B)contraction of extensors and flexors.
C)relaxation of extensors and contraction of flexors.
D)contraction of extensors and relaxation of flexors.

Question

Bending a joint requires​ 
A)relaxation of extensors and flexors. 
B)contraction of extensors and flexors. 
C)relaxation of extensors and contraction of flexors. 
D)contraction of extensors and relaxation of flexors.

Quizplus · Accepted Answer

Bending a joint, such as the elbow, involves the contraction of flexor muscles (like the biceps) and the relaxation of extensor muscles (like the triceps).

Bending a Joint Requires​

Bending a Joint Requires