Muscle Contraction

Front

What is the name of the thin contractile filament found in a sarcomere?

Back

Actin

Front

What is the name of the thick contractile filament found in a sarcomere?

Back

Myosin

Front

What is the sarcolemma?

Back

The outside covering of a muscle cell.

Front

What does the sarcoplasmic reticulum do?

Back

Stores calcium.

Front

What is the name of the place where a nerve meets a muscle fiber?

Back

Neuromuscular junction.

Front

What is a sarcomere?

Back

The basic contractile unit of muscle tissue.

Front

What role does calcium play in muscle contraction?

Back

Calcium ions trigger the interaction between actin and myosin.

Front

What is the function of troponin in muscle contraction?

Back

Troponin binds calcium and helps regulate muscle contraction.

Front

What is the sliding filament theory?

Back

The theory that muscle contraction occurs by the sliding of actin filaments over myosin filaments.

Front

What is the role of ATP in muscle contraction?

Back

ATP provides the energy required for muscle contraction and relaxation.