Muscle Anatomy Review

Front

What are myofilaments made up of?

Back

Actin and Myosin

Front

What is the bundle of muscle fibers called?

Back

Fascicle

Front

What is the name of the structure labeled as Myofibril?

Back

Myofibril

Front

What is the term for muscle fiber?

Back

Muscle Fiber

Front

List the structures of a muscle from smallest to largest.

Back

Myofilaments, Myofibril, Muscle Fiber, Fascicle, Muscle

Front

What is the function of Actin in muscle contraction?

Back

Actin is a protein that forms thin filaments and interacts with myosin to facilitate muscle contraction.

Front

What role does Myosin play in muscle contraction?

Back

Myosin is a protein that forms thick filaments and interacts with actin to generate muscle contraction.

Front

Define Sarcolemma.

Back

Sarcolemma is the cell membrane surrounding a muscle fiber.

Front

What is the function of Mitochondria in muscle cells?

Back

Mitochondria produce ATP, which provides energy for muscle contractions.

Front

What is the role of Troponin in muscle contraction?

Back

Troponin binds to calcium ions and helps regulate muscle contraction by moving tropomyosin away from actin binding sites.