Across
- 2. delicate blood vessels that exist throughout your body
- 5. blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart
- 6. helps form blood clots to slow or stop bleeding
- 9. blood vessels that transfer freshly oxygenated blood from the lungs to the left atria of the heart
- 11. the innermost layer of the heart
- 12. blood vessels that carry oxygen-poor blood from the right side of your heart to your lungs
- 14. helps the body fight infection and other diseases
Down
- 1. middle layer of the heart walls
- 3. the largest artery of the body and carries blood from the heart to the circulatory system
- 4. the two lower chambers of the heart
- 5. large vein that carries blood to the heart from other areas of the body
- 7. blood vessels that bring oxygen-rich blood from your heart to all of your body's cells
- 8. thin, fluid-filled sac that surrounds the heart
- 10. heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart
- 13. type of blood cell that is made in the bone marrow and found in the blood also known as red blood cells