In extending the elbow, the
A) triceps brachii is the prime mover.
B) biceps brachii is the prime mover.
C) brachialis is the prime mover
D) triceps brachii is the antagonist.

Question

Quizplus · Accepted Answer

The triceps brachii is the prime mover in extending the elbow. It contracts concentrically to produce the movement, while the biceps brachii and brachialis act as synergists to stabilize and assist the movement. The triceps brachii is not an antagonist in this movement.

In Extending the Elbow, the