Across
- 4. largest artery
- 5. valve between the left atrium and the left ventricle; bicuspid valve
- 6. this blood is bright red blood that has picked up oxygen from the lungs, and enters back into the heart through the pulmonary lungs
- 7. the two lower chambers of the heart, and they pump blood out to the lungs and body
- 8. a double layered protective covering of the heart
- 10. vessels that carry blood towards the heart
- 11. smallest blood vessels
- 15. chamber that receives blood from the lungs
- 16. the vena cava where blood returns to the heart from upper body
- 18. deoxygenated blood enters the heart here
- 19. valve between the right atrium and the right ventricle
- 21. sends deoxygenated blood to the lungs
- 23. vessels that carry blood away from the heart
Down
- 1. pumps blood out of the heart through the aorta aortic valve into the aorta
- 2. sends oxygenated blood back to the heart
- 3. the body system that includes the heart and blood vessels
- 9. this blood enters on the right side of the heart through the superior and inferior vena cava and leaves through the pulmonary artery to the lungs
- 12. the two upper chambers of the heart
- 13. prevent back flow of blood
- 14. vena cava where the blood returns to the heart from lower body
- 17. pumps oxygen poor blood to the lungs through the pulmonary valve then the pulmonary arteries
- 20. valve positioned between the right ventricle and the pulmonary artery
- 22. valve that keeps blood from flowing back into the left ventricle