Across
- 2. name the valve between right atrium and right ventricle
- 6. the heart beat starts in the _______ node
- 7. deoxygenated blood returns to the ____ side of the heart
- 10. blood pressure is measured with what
- 12. red blood cells are known as ____
- 14. antibodies are produced in response to ____
- 15. which is thicker, artery or vein
- 16. blood clotting requires which mineral
- 17. lumen are ____ in veins than arteries
Down
- 1. a bruise is caused by ____ blood cells
- 3. name the outer layer of the heart
- 4. cells that clot the blood are known as ____
- 5. which vessels use valves to move blood
- 8. blood type O is the universal____
- 9. pulmonary arteries carry ____ blood
- 11. what is the role of blood in the immune system
- 13. diastole is the ____ period of the heart