Across
- 2. Liquid part of blood
- 6. "Windpipe"
- 7. Blood vessel that takes blood AWAY from the heart
- 9. Branching at the end of the trachea
- 11. Molecule in red blood cells that binds with oxygen molecules
- 12. Small branching within the lungs
- 13. Air sacs involved in gas exchange between the lungs and the blood
- 14. Side of the heart that is carrying deoxygenated blood
- 15. Small pieces of cells that help in clotting
- 16. Type of blood cell involved in immunity
- 18. Muscular organ involved in the pumping of blood
Down
- 1. Gas that is inhaled
- 2. Muscular flap the separates air/trachea from food/esophagus
- 3. Type of blood cell that contains hemoglobin
- 4. Gas that is exhaled
- 5. Blood vessel that takes blood TOWARDS the heart
- 8. Side of the heart that is carrying oxygenated blood
- 10. Small blood vessels that connect veins and arteries
- 17. "Voicebox"