Muscle Anatomy & Contractions

Front

What is the outermost layer of connective tissue surrounding a muscle called?

Back

Epimysium

Front

What is another name for a muscle cell?

Back

Muscle fiber

Front

What connective tissue surrounds fascicles within a muscle?

Back

Perimysium

Front

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

Back

Actin and Myosin

Front

What is the connective tissue that surrounds each individual muscle cell?

Back

Endomysium

Front

What is the functional unit of a muscle called?

Back

Sarcomere

Front

What is the role of actin in muscle contraction?

Back

Actin serves as the thin filament that interacts with myosin to facilitate muscle contraction.

Front

What is the role of myosin in muscle contraction?

Back

Myosin serves as the thick filament that pulls on actin to shorten the muscle during contraction.

Front

What is the term for the process by which muscle fibers generate force?

Back

Muscle contraction

Front

What is the name of the structure that transmits the action potential to the muscle fiber?

Back

T-tubule (transverse tubule)