Body Systems

1. Tiny sacs of lung tissue that help with the movement of gases between air and blood.
3. A blood vessel that carries blood away from the heart.
6. Airways in the lungs that go from bronchi to alveoli
7. A little filter that the blood goes through found in the kidney
10. Connects arteries and veins and the smallest blood vessel.
11. A windpipe that allows air to pass to and from the lungs.
14. Passages that direct air into the lungs.
15. A cell fragment that helps in forming a scab

2. The bottom or lower chamber of the heart.
4. Blood cells that carry oxygen to from the lungs to the cells.
5. Blood cells that fight diseases.
8. The part of blood that is liquid
9. A flat muscle at the bottom of the chest that helps with breathing.
12. The top ot the upper part of the heart.
13. Structure that are shaped like tiny fingers that cover the inner surface of the small intestine