Across
- 4. The heart is found in this body cavity
- 5. The chordae tendineae found with AV valves is sometimes called this due to its appearance
- 7. The largest vein returning blood from the lower half of the body is the ______ vena cava
- 8. The number on "bottom" of a blood pressure reading
- 11. Valves between the atria and ventricles (tricuspid and bicuspid)
- 15. Carries blood away from the heart
- 17. Occurs when you are cold &/or your body is trying to increase blood pressure
- 20. The largest artery that leaves the heart
- 21. The oxygenated blood enters the left _______ from the pulmonary vein
- 22. Outermost tissue layer of the heart, made of connective tissue that covers and protects the heart
- 23. Arteries have a thick tunica ____________
- 24. Valve between the left atrium and ventricle
- 27. Occurs when you are hot &/or your body is trying to decrease blood pressure
- 28. The pressure in the blood vessels when the ventricle contracts
- 30. Another term for red blood cells
Down
- 1. Pulmonary artery carries ________ blood to the lungs
- 2. Middle tissue layer of the heart, made of cardiac muscle
- 3. Helps scabs to form & prevents uncontrolled bleeding
- 6. Blood from the inferior & superior vena cavas enter into this chamber of the heart
- 9. Valve between the right atrium & ventricle
- 10. When the _________ of the heart close, it creates the "lub-dub" sound of a heartbeat
- 12. Innermost tissue layer of the heart,made up of simple squamous epithelium.
- 13. Carries blood back to the heart
- 14. The left _______________ then pumps the oxygenated blood to the body
- 16. Blood collects in this chamber and is then pumped to the lungs
- 18. The serous membrane that encases and protects the heart
- 19. Pulmonary vein carries __________ back to the heart
- 25. The "liquid" portion of blood
- 26. Very small, the site of nutrient and waste exchange
- 29. The ____________ valves connect to the pulmonary artery & aorta