SPS113: Muscular System P2

What is the role of the agonist muscle?

• It opposes the movement of the prime mover.

• It stabilizes the action of a prime mover.

• It is primarily responsible for producing a movement.

• It maintains the position of a bone or joint.

Which muscle acts as the antagonist during elbow flexion?

• Brachialis

• Pectoralis major

• Biceps brachii

• Triceps brachii

What is the function of a synergist muscle?

• To reverse the action of the prime mover.

• To maintain posture.

• To produce a movement.

• To balance or stabilize the action of a prime mover.

What does the term 'origin' refer to in muscle attachment?

• The muscle that opposes the prime mover.

• The point where the muscle contracts.

• The end of the muscle attached to the bone that does not move.

• The end of the muscle attached to the moving bone.

Which of the following is NOT a large muscle group?

• Back

• Glutes

• Biceps

• Quadriceps

Which muscle is primarily responsible for elbow flexion?

• Triceps brachii

• Biceps brachii

• Brachialis

• Sartorius

What is the role of a fixator muscle?

• To stabilize the action of a synergist.

• To maintain the position of a bone or joint.

• To produce movement.

• To oppose the action of the prime mover.

Which of the following muscles is part of the small muscle groups?

• Gluteus maximus

• Trapezius

• Biceps brachii

• Latissimus dorsi

What happens to the insertion of a muscle when it contracts?

• It remains stationary.

• It moves closer to the origin.

• It moves away from the origin.

• It lengthens.

Which muscle is responsible for stabilizing the shoulder joint?

• Deltoid

• Teres major

• Infraspinatus

• Serratus anterior