Muscle Function Quiz

What is the role of an agonist muscle?

• Muscle that contracts to produce movement.

• Muscle that relaxes to allow movement.

• Muscle that supports the movement of the joint.

• Muscle that stabilizes the body.

Which muscle is required to relax on the opposite side of a joint?

• Agonist muscle

• Antagonist muscle

• Synergist muscle

• Stabilizer muscle

What is the function of synergist muscles?

• To contract and produce movement

• To relax and lengthen

• To support the movement of the joint

• To stabilize the body

What is the characteristic of concentric muscle action in isoinertial contraction?

• Lengthening of muscle length from resting state

• Shortening of muscle length from resting state

• No change in joint angle or muscle length

• Speed of contraction is controlled throughout the full range of motion

Which type of muscle contraction involves no change in joint angle or muscle length?

• Isoinertial

• Isometric

• Isokinetic

• Concentric

What is a key feature of isokinetic muscle contraction?

• Muscle lengthens from resting state

• Tension develops with no movement

• Speed of contraction is controlled throughout the full range of motion

• Muscle shortens from resting state

What is another term for isoinertial muscle action?

• Isometric

• Isokinetic

• Isotonic

• Concentric

What are acute responses?

• Long-term changes in the body

• Immediate, short-term changes when we start moving/exercising

• Changes that last for months

• Permanent changes in the body

How long do acute responses last?

• For a lifetime

• Only for the time we are moving/exercising and a short time afterwards

• For several years

• Indefinitely

What happens to blood flow to muscles when we start exercising?

• It decreases

• It remains the same

• It increases

• It stops completely