Across
- 2. A large blood vessel that carries blood away from the heart to the tissues of the body
- 3. blood cell containing hemoglobin that carries oxygen
- 4. tiny air sac at the end of a bronchiole in the lungs that provides surface area for gas exchange to occur
- 6. one of two large tubes in the chest cavity that leads from the trachea to the lungs
- 9. Lower chamber of the heart that pumps blood out of the heart to the rest of the body
- 13. relating to the lungs
- 15. fluid that is filtered out of the blood
- 17. condition in which fatty deposits called plaque build up on the inner walls of the arteries
- 19. straw-colored liquid portion of the blood
Down
- 1. type of blood cell that guards against infection, fights parasites, and attacks bacteria
- 5. A blood vessel that carries blood from the body back to the heart
- 7. smallest blood vessel; brings nutrients and oxygen to the tissues and absorbs carbon dioxide and waste products
- 8. Large, flat muscle at the bottom of the chest cavity that helps with breathing
- 10. tube that connects the larynx to the bronchi; also called the windpipe
- 11. cell fragment released by bone marrow that helps in blood clotting
- 12. tube at the back of the mouth that serves as a passageway for both air and food; also called the throat
- 14. upper chamber of the heart that receives blood from the rest of the body
- 16. Thick middle muscle layer of the heart
- 18. structure in the throat containing the vocal cords