Cardiovascular System Crossword

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Across
  1. 2. Upper left division of the heart that retains oxygenated blood from lungs and pumps it to the left ventricle.
  2. 3. Lower left division of the heart considered as the main pumping chamber.
  3. 5. 4 veins distributed in pairs to each lung that supply oxygenated blood from lungs to the left ventricle during pulmonary circulation.
  4. 9. Specialized structure/bundle that generates electrical impulses for contractions.
  5. 10. Rhythmic dilation of an artery, that is provoked when the aortic valve opens and closes.
  6. 13. Arteries located in the lungs divided into right and left that deliver deoxygenated blood to each lung.
  7. 14. Upper right division of the heart that pumps deoxygenated blood to the right ventricle.
  8. 15. Type of atrioventricular valve that divides the right atrium and ventricle, providing blood to the ventricle from the atrium while opened.
Down
  1. 1. Type of atrioventricular valve that closes to fill the left atrium with oxygenated blood, and opens to allow blood-entrance to the left ventricle.
  2. 4. Right and left arteries of the heart in charge of supplying of oxygen and nutrients the heart muscle during coronary circulation.
  3. 6. Specific and semilunar valve that warrants the entrance of blood from the heart to the body.
  4. 7. Lower right division of the heart that collects deoxygenated blood from the right atrium.
  5. 8. Principal artery in our body, cane-shaped, that during systemic circulation carries blood from the heart to other parts of the body.
  6. 11. Largest vein in the body that transports deoxygenated blood from lower body parts to the heart.
  7. 12. Contraction of heart’s ventricles that usually lasts from 0.3-0.4 seconds.