Respuesta :
Answer:
Considering the relationship between the biceps and the triceps, the biceps is the prime mover whereas the triceps is the antagonist as the elbow is flexed.
Explanation:
Prime mover is the muscle which is the cheif muscle or member of cheif group of muscles for a particular movment as biceps is when the elbow is flexed. While Antagonist is the muscle which opposes the movement of the prime mover as triceps is , when the elbow is felxed. Before a prime mover can contratc, the antagosnist muscle must be equally relaxed.

Answer:
Prime mover; antagonist
Explanation:
The biceps is the part of the muscle in the body that can be found int the upper arm or at the thigh region on the legs. The biceps on the arm is the muscle that helps in the lifting of ones' forearm and it also helps when one wants to flex his or her elbow. The biceps on the leg which is also known as the leg biceps helps in flexing the legs as well.
The triceps can also be found in the upper arm too but in the posterior region unlike the biceps which is found at the anterior region.
During the flexing of ones' elbow, the biceps is the prime mover while the triceps does not want to allow this movement and it is known as the antagonist muscle.