Question

unit 2 - challenge 2.3: the muscular system
what is the main role of an agonist?
a.) to oppose the action of the prime mover
b.) to serve as the main mover of a joint
c.) to stabilize the bones during movement
d.) to assist the prime mover

Explanation:

An agonist, also known as a prime mover, is the muscle that contracts to cause a specific movement at a joint. It is the main muscle responsible for the action. Option a describes an antagonist (opposes prime mover), option c is more related to stabilizer muscles, and option d is an assistant (like a synergist).

Answer:

B. To serve as the main mover of a joint