Across
- 1. protective membrane that holds each lung
- 3. muscle below the lungs that help the lungs inhale and exhale
- 5. carry oxygenated (oxygen rich) blood AWAY from the heart and out to the major organs of the body.
- 6. branching tubes from the trachea (in each lung) leading to the alveoli
- 7. tiny air sacs; pick up carbon dioxide waste and distribute fresh air to the blood
- 10. small blood vessels where gas-exchange occurs
- 12. two lower chambers of the heart- left and right
- 16. works as a pump to move the blood around the body.
- 17. nasal cavity; external enter and exit point for air
Down
- 1. straw-colored liquid where the other blood components float in
- 2. pair of organs that supply the body with oxygen, and removes carbon dioxide from the body
- 4. carry oxygen, hemoglobin, nutrients, and wastes
- 8. two upper chambers of the heart- left and right
- 9. gather at the site of injury and help the clotting process
- 11. carry de-oxygenated (oxygen poor) blood BACK to the heart from major organs of the body
- 13. small flap that covers trachea when eating
- 14. windpipe; tube that leads into lungs
- 15. fight diseases and protect the body from infection