How Your Muscles Work

Which type of muscle is responsible for voluntary movements like walking and running?

• Cardiac muscles

• Smooth muscles

• Skeletal muscles

• Involuntary muscles

Which types of muscles move on their own without you having to think about them?

• Skeletal and voluntary muscles

• Flexor and extensor muscles

• Cardiac and smooth muscles

• Arm and leg muscles

How do muscles move body parts?

• By expanding and shrinking

• By contracting and relaxing

• By pushing and pulling

• By stretching and stiffening

What sends messages to your muscles to make them move?

• Your heart

• Your brain

• Your stomach

• Your bones