Muscular System

What type of muscle is voluntary?

• Skeletal

• Cardiac

• Smotth

What type of muscle has striations? Choose all that apply.

• Skeletal

• Cardiac

• Smooth

What type of muscle contains intercalated disks?

• Skeletal

• Cardiac

• Smooth

What type of muscle tissue is shown?

• Skeletal

• Cardiac

• Smooth

What is 1?

• Sarcomere

• Actin (thin filament)

• Myosin (thick filament)

• Z line

What is 3 pointing at?

• Sarcomere

• Actin (thin filament)

• Myosin (thick filament)

• Z line

What is 5?

• Sarcomere

• Actin

• Myosin

• Z line

What happens to the distance between Z lines when a muscle relaxes?

• increases

• decreases

What part of skeletal muscle attaches to the bone that moves when a muscle contracts?

• Origin

• Body

• Insertion

What ion is released from the muscle cell when a nerve impulse arrives?

• Sodium

• Calcium

• Potassium

• Chloride