Muscular System

Front

What is the main characteristic that smooth muscle lacks?

Back

Striation.

Front

What is each unit in a muscle fiber called?

Back

Sarcomeres.

Front

What surrounds individual muscle fibers?

Back

Endomysium.

Front

Where is smooth muscle primarily found in the body?

Back

Digestive system.

Front

What do globular heads from myosin filaments latch onto?

Back

Actin filaments.

Front

What type of muscle is responsible for involuntary movements?

Back

Smooth muscle.

Front

What is the connective tissue that surrounds a whole muscle called?

Back

Epimysium.

Front

What is the role of calcium in muscle contraction?

Back

Calcium ions trigger the interaction between actin and myosin.

Front

What type of muscle is striated and under voluntary control?

Back

Skeletal muscle.

Front

What is the function of troponin in muscle contraction?

Back

Troponin binds calcium and causes a conformational change that allows muscle contraction.