Question

which of the following best describes an agonist muscle? * 1 point
a) the muscle that relaxes during movement
b) the muscle that is responsible for the movement
c) the muscle that opposes the movement
d) the muscle that stabilizes the joint
which of the following best describes an antagonist muscle? * 1 point
a) the muscle that helps aid in the movement
b) the muscle that is responsible for the movement
c) the muscle that opposes (relaxed/stretched) during the movement
d) the muscle that stabilizes the joint
which muscle is the agonist when bending (flexing) your elbow in an arm curl? * 1 point
biceps (contracted)

Explanation:

An agonist muscle is the primary muscle responsible for a movement. An antagonist muscle opposes the movement of the agonist. When flexing the elbow in an arm - curl, the biceps is the agonist as it contracts to cause the movement.

Answer:

1. B) The muscle that is responsible for the movement
2. C) The muscle that opposes (relaxed/stretched) during the movement
3. Biceps