Across
- 2. Also known as the voice box section of throat
- 3. main organ of the pulmonary system
- 5. first part of throat behind nose and mouth
- 6. main organ of the cardiovascular system
- 9. protective sac surrounding the heart
- 12. ____ Cava- main veins that bring blood to the heart
- 13. main artery that leaves the heart
- 16. muscle layer separating the thoracic and abdominal cavity
- 18. blood cell leads to clotting of blood
- 22. flap of skin protecting the respiratory system from food
- 23. gas that the body's cells waste
- 24. the two main branches off of the trachea into the lungs
- 26. another name for the circulatory system
- 27. ____ Atrium recieves the blood from the Vena Cava
- 28. smallest passageways in the lungs
- 29. heart wall that seperates the left from the right
- 30. Heart Chamber to recieve blood
Down
- 1. gas that the body's blood cells need
- 4. blood cell that helps fight diseases
- 7. blood cell that carries oxygen to the body
- 8. also known as the windpipe section of throat
- 9. liquid makes up 50-60% of the blood
- 10. the layers of muscle that make up the heart organ.
- 11. ____ ventricle is the largest chamber of the heart
- 14. smallest blood vessels/ site of gas exchange
- 15. blood vessels carry deoxygenated blood to the heart
- 17. tiny airsacs that blood receives oxygen through the capillaries
- 19. another name for the chest cavity that holds the heart and lungs
- 20. blood vessels carry oxygenated blood to the body
- 21. Heart chamber to pump out blood
- 25. another name for the respiratory system