Structure of a heart

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Across
  1. 2. blood vessel having thickest walls.
  2. 3. carries pure blood to the heart.
  3. 5. membrane of the heart.
  4. 6. liquid part of the blood.
  5. 12. instrument used to measure blood pressure.
  6. 13. caused due to constant high blood pressure.
  7. 14. the first chamber of the heart to receive pure blood.
Down
  1. 1. valve present between right auricle and ventricle.
  2. 4. valve present in the mouth of the aorta.
  3. 7. organ for the purification of the blood.
  4. 8. instrument used to measure heartbeat.
  5. 9. prevents backflow of the blood.
  6. 10. blood component that carries oxygen in the blood.
  7. 11. largest blood vessel of the heart.
  8. 13. muscular structure present between right and left side of the heart.