Blood

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Across
  1. 3. the amount of blood ejected from the ventricle with each cardiac cycle
  2. 6. the middle muscular layer of the heart
  3. 7. the “gatekeeper” between the atria and the ventricles
  4. 9. a measure of a fluid's resistance to flow
  5. 11. the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane
  6. 13. the thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves
  7. 15. prevent the backward flow of blood.
  8. 16. generates an electrical signal that causes the upper heart chambers (atria) to contract
  9. 18. a forced expiratory effort against a closed airway
  10. 19. A large vein that carries blood to the heart from other areas of the body
  11. 20. the narrowing (constriction) of blood vessels by small muscles in their walls
  12. 24. relating to the lungs.
  13. 25. a heart condition that causes an irregular and often abnormally fast heart rate
  14. 26. a test to record the electrical signals in the heart
Down
  1. 1. cartilage that divides the nose into 2 separate chambers
  2. 2. A blood vessel that carries blood to the heart from tissues and organs in the body
  3. 4. when blood vessels in your body widen, allowing more blood to flow through them and lowering your blood pressure
  4. 5. large, with free-running fibers (false tendons) as well as a subendocardial network
  5. 8. Heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart (left and right)
  6. 10. A blood vessel that carries blood from the heart to tissues and organs in the body
  7. 12. a small vein collecting blood from capillaries
  8. 14. the main blood vessel through which oxygen and nutrients travel from the heart to organs throughout your body.
  9. 15. muscular chamber that pumps blood out of the heart and into the circulatory system
  10. 16. the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries.
  11. 17. the stroke volume of the left ventricle will increase as the left ventricular volume increases due to the myocyte stretch causing a more forceful systolic contraction.
  12. 18. the narrowing (constriction) of blood vessels by small muscles in their walls
  13. 21. a very small blood vessel that branches off from your artery and carries blood away from your heart to your tissues and organs.
  14. 22. a serous membrane that forms the innermost layer of the pericardium and the outer surface of the heart.
  15. 23. the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.