Body Systems

5. The passages that direct air into the lungs
7. Airways in the lungs that lead from the bronchi to the alveoli.
9. Blood cells that carry oxygen from the lungs to the body cells.
11. Large, flat muscle at the bottom of the chest cavity that helps with breathing
14. Where most of the food nutrient absorption is from

1. System that removes cellular waste from your body and controls water balance.
2. Smallest blood vessel; that connects arteries and veins - is where stuff is being delivered and picked up.
3. Group of organs working together to create a specific function
4. Found in the kidney, a little filter that blood goes through.
6. The basic unit of structure and function in living things
8. Tiny finger-shaped structures that cover the inner surface of the small intestine where digested food is absorbed
10. Absorbs water
12. Tiny sacs of lung tissue specialized for the movement of gases between air and blood
13. Upper chamber of the heart