ANATOMY FLASHCARD on Chapter 6 "The Muscular System"

Front

What is isometric muscle contraction?

Back

Isometric muscle contraction occurs when a muscle exerts force without changing its length, such as when trying to lift a weight that is too heavy to move.

Front

What is isotonic muscle contraction?

Back

Isotonic muscle contraction involves a change in muscle length while maintaining constant tension, such as lifting a weight.

Front

What is isokinetic muscle contraction?

Back

Isokinetic muscle contraction occurs when the muscle changes length at a constant speed, often used in rehabilitation.

Front

What is eccentric muscle contraction?

Back

Eccentric muscle contraction happens when a muscle lengthens while under tension, such as lowering a weight.

Front

What is the function of the pectoralis muscle?

Back

The pectoralis muscle is primarily responsible for the movement of the shoulder joint, including flexion, adduction, and rotation.

Front

What is the function of the deltoid muscle?

Back

The deltoid muscle is responsible for shoulder abduction, flexion, and extension.

Front

What is the function of the latissimus dorsi muscle?

Back

The latissimus dorsi muscle helps in the adduction, extension, and internal rotation of the shoulder.

Front

What is the function of the abdominal muscles?

Back

The abdominal muscles support the trunk, allow movement, and hold organs in place.

Front

What are synergist muscles?

Back

Synergist muscles assist the agonist in performing a movement, helping to stabilize or enhance the action.

Front

What are antagonist muscles?

Back

Antagonist muscles oppose the action of the agonist, providing balance and control during movement.