Across
- 2. scientific term for white blood cell
- 6. the movement of gas from an area of high concentration to an area of low concentration.
- 7. Gas exchange occurs here
- 9. The large air passages that lead from the trachea
- 11. Known as the vocal cords
- 14. combination of hemoglobin with oxygen
- 15. muscles that are found between the ribs and they control rib movement.
- 16. a type of wbc which produces soluble proteins called antibodies
- 18. windpipe
- 19. Lungs
- 20. organelles which involve in respiration?
Down
- 1. scientific term for red blood cell
- 3. leaf-shaped flap in the throat that prevents food and water from entering the trachea and the lungs
- 4. bronchus branches out into smaller tubes
- 5. Muscle that moves up and down to push and pull air
- 8. the process of engulfing and destroying unwanted microorganisms that enter the blood
- 10. the term for unwanted microorganisms that enter the body
- 12. Located between nasal cavity & larynx
- 13. a type of wbc that makes up 70% of the wbc
- 17. iron-rich protein in the blood