11. With circulation, the heart provides your body with:
a. Oxygen
c. a way to get rid of waves
b. Nutrients
d. all of the above
12. What parts act like doors that control blood flow in the heart?
a. Valves
c. kidney
b. Heart dams d. chambers
13. You can keep your heart strong by:
a. Eating heart-shaped candy
b. Doing activities, like playing outside, riding your bike, and swiming
C. Smoking
d. Sleeping 18 hours a day
Superior
Vena Cava
SS
16.
Pulmonary
Artery
A. Aortic Valve​