26. Antagonistic Muscle Pairs

Which term describes the muscle that is primarily responsible for producing a specific movement at a joint?

• Antagonist

• Agonist

• Synergist

• Fixator

During a biceps curl, which muscle acts as the antagonist?

• Biceps brachii

• Pectoralis major

• Deltoid

• Triceps brachii

What is the role of a fixator muscle during movement?

• To oppose the agonist

• To produce the main movement

• To stabilise the origin of the agonist

• To assist the antagonist

Which muscle is the antagonistic pair of the hamstrings?

• Quadriceps

• Iliapsoas

• Gastrocnemius

• Gluteus maximus

Which muscle is the antagonistic pair of the deltoid?

• Triceps brachii

• Pectoralis major

• Rotator cuff muscles

• Latissimus dorsi

Which of the following best describes the function of a synergist muscle?

• It produces the opposite movement to the agonist

• It assists the agonist in performing a movement

• It stabilises the joint

• It prevents unwanted movement

When kicking a football, which muscle acts as the agonist during knee extension?

• Hamstrings

• Tibialis anterior

• Gluteus maximus

• Quadriceps

Which muscle is the antagonistic pair of the wrist flexors?

• Biceps brachii

• Wrist extensors

• Triceps brachii

• Wrist pronators

Which of the following is an example of an antagonistic muscle pair in the lower leg?

• Biceps and triceps

• Quadriceps and hamstrings

• Gastrocnemius and tibialis anterior

• Hip adductors and abductors

What is the main function of the antagonist muscle during movement?

• To contract and produce movement

• To relax and allow movement

• To stabilise the joint

• To assist the agonist