How do the heart and lungs work together​

The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.

Explanation:

The heart and lungs work together to make sure the body has the oxygen-rich blood it needs to function properly. The Pulmonary Loop The right side of the heart picks up the oxygen-poor blood from the body and moves it to the lungs for cleaning and re-oxygenating.

lungs bring air into the blood and the blood bring the air to the heart so the heart and bring more blood to the body

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.