Flexor and extensor muscles work _______ to operate the joint.
A) synergistically
B) antagonistically
C) separately
D) consecutively
E) end-to-end

Question

Quizplus · Accepted Answer

Flexor and extensor muscles work antagonistically, meaning they operate in opposition to each other. The flexor muscle contracts to bend the joint, while the extensor muscle relaxes. The extensor muscle then contracts to straighten the joint, while the flexor muscle relaxes. This back-and-forth movement is what allows the joint to move.

Flexor and Extensor Muscles Work _______ to Operate the Joint