HONORS Muscular System Review!

Front

What is an eccentric contraction?

Back

A type of muscle contraction where the muscle lengthens while under tension, often used to control movement against gravity.

Front

What is muscle tone?

Back

The continuous and passive partial contraction of the muscles, which helps maintain posture and readiness for action.

Front

What are the three types of muscles in the human body?

Back

Cardiac, smooth, and skeletal.

Front

What is the function of the gastrocnemius muscle?

Back

It is a major calf muscle that helps in plantar flexion of the foot and flexion of the knee.

Front

Define adduction in terms of muscle movement.

Back

Adduction is the movement of a limb toward the midline of the body.

Front

What is the role of cardiac muscle?

Back

Cardiac muscle is responsible for pumping blood throughout the body and is found only in the heart.

Front

What is the difference between isotonic and isometric contractions?

Back

Isotonic contractions involve muscle shortening with movement, while isometric contractions involve muscle tension without movement.

Front

What is the primary function of smooth muscle?

Back

Smooth muscle controls involuntary movements in hollow organs, such as the intestines and blood vessels.

Front

What is muscle fatigue?

Back

A temporary inability of a muscle to maintain its strength of contraction or tension.

Front

What is the significance of action potential in muscle contraction?

Back

Action potential is an electrical signal that triggers muscle contraction by causing the release of calcium ions.