The Circulatory System - by Adhithi Balaji

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Across
  1. 2. Vein carries oxygenated blood from the lungs to the heart
  2. 3. A flap of tissue in the heart or a vein that prevents blood from flowing backward.
  3. 4. The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body.
  4. 6. Vena Cava The second largest vein in the human body which returns blood to the right atrium of the heart from the upper half of the body.
  5. 8. Two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration
  6. 9. Connective tissue made of plasma, erythrocytes, leukocytes, and platelets.
  7. 11. A blood vessel that carries blood away from the heart
  8. 12. Vena Cava The largest vein in the human body which returns blood to the right atrium of the heart from the lower half of the body.
Down
  1. 1. Microscopic vessel through which exchanges take place between the blood and cells of the body
  2. 5. A hollow, muscular organ that pumps blood throughout the body.
  3. 7. Artery Artery carrying oxygen-poor blood from the heart to the lungs
  4. 10. A blood vessel that carries blood back to the heart.