Circulatory system

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Across
  1. 3. Chamber of the heart that receives oxygen-rich blood from the lungs via the pulmonary veins and pumps it into the left ventricle to be distributed throughout the body
  2. 6. blood that has circulated through the body's tissues, releasing oxygen and picking up carbon dioxide as a waste product
  3. 7. blood vessels in the body that carry deoxygenated blood from tissues back to the right atrium of the heart, excluding the lungs
  4. 8. the smallest type of blood vessel in the body, their walls being just one cell thick
  5. 10. A large vein carrying deoxygenated blood into the heart
  6. 11. The artery carrying blood from the right ventricle of the heart to the lungs for oxygenation
  7. 13. A vein carrying oxygenated blood from the lungs to the left atrium of the heart
Down
  1. 1. lower-left chamber of the heart that pumps oxygenated blood from the left atrium to the aorta, which then distributes it to the entire body
  2. 2. one of the four chambers of the heart that receives deoxygenated blood from the right atrium and pumps it to the lungs for oxygenation
  3. 4. main artery of the body, supplying oxygenated blood to the circulatory system
  4. 5. blood vessels that carry oxygenated blood away from the heart to all parts of the body except the lungs
  5. 9. organ that pumps the blood through the circulatory system
  6. 12. the upper right chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle
  7. 14. organs responsible for removing carbon dioxide from the blood and adding oxygen to it