Across
- 2. circulation of blood from the heart to the lungs and vice-versa
- 3. fatty substance
- 4. body cells break down nutrients (oxygen present) to release energy
- 7. circulation of blood from the heart to the tissue capillaries and vice-versa
- 9. largest artery in the body
- 10. artery pertaining to the arm
- 12. chest
- 16. innermost layer of epithelial cells
Down
- 1. two large veins that carry oxygen-poor blood to the heart
- 5. walls that separate the four chambers of the heart
- 6. clot
- 8. smaller types of blood vessels
- 11. types of blood vessels in the body
- 13. vessel that contains valves to prevent blood from flowing back.
- 14. opening of a blood vessel
- 15. upper heart chambers