Muscles

Muscles in your body move in _________.

• points

• their own way

• pairs

One muscle _______ and the other _______.

• works, works harder

• works, relaxes

Muscles pull on _______ to help you move.

• Body parts

• Other muscles

• Bones

_________ muscles are controlled by you.

• Involuntary

• Voluntary

__________ muscles you do not control.

• Voluntary

• Involuntary

Your heart is a/an ________________ muscle.

• Voluntary

• Involuntary

Arms and legs are _______ muscles.

• Voluntary

• Involuntary

Is this movement voluntary or involuntary ? Pumping blood through your body

• Voluntary

• Involuntary

Is this action voluntary or involuntary? Riding a bike

• Voluntary

• Involuntary

Your muscular system contains over _______ muscles.

• 200

• 100

• 1,000

• 600