Muscle Anatomy Review

Front

What is the connective tissue that surrounds individual muscle fibers?

Back

Endomysium

Front

What are the two types of proteins that make up myofibrils?

Back

Actin and Myosin

Front

What is the thick protein myofilament in muscle fibers?

Back

Myosin

Front

What connective tissue surrounds a fascicle of muscle fibers?

Back

Perimysium

Front

What is the thin protein myofilament in muscle fibers?

Back

Actin

Front

What is the outermost connective tissue layer surrounding a muscle?

Back

Epimysium

Front

What is the functional unit of a muscle fiber?

Back

Sarcomere

Front

What is the role of troponin in muscle contraction?

Back

Troponin binds calcium ions and helps regulate muscle contraction.

Front

What is the role of tropomyosin in muscle contraction?

Back

Tropomyosin blocks the binding sites on actin for myosin.

Front

What neurotransmitter is released at the neuromuscular junction?

Back

Acetylcholine