science term 4

1. pumps blood throughout body
6. moves food from the back of your throat to stomach
9. thin sacs that surround each lung lobe and separate your lungs from your chest wall
10. red-brown bean shaped organs
11. heart chamber
12. absorbs water
14. digest acid
16. viral organ that mong other jobs filter toxins from the blood
17. bones that protect your lungs
20. removes waste products
21. carries to and from the lungs
22. absorbs nutrients from food

2. takes blood away from heart
3. muscle that helps your lungs pull in and push out air
4. each of the two main chambers
5. hollow organ that allows you to talk and make sounds when air moves in and out
7. tiny air sacs in lungs where the exchange of oxygen and carbon dioxide takes place
8. large organ that covers body
13. small branches of the bronchial tubes that lead to each lung and alveoli
15. the heart, left and right
18. tubes at the bottom of your windpipe that connect to each lung
19. tubes that deliver air from your mouth and nose to the trachea