Circulatory System

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Across
  1. 2. the main chamber of your heart, responsible for pumping oxygen-rich blood into your aorta
  2. 4. the smallest blood vessels that exist throughout your body. They transport blood, nutrients and oxygen to cells in your organs and body systems.
  3. 6. a light amber-colored liquid component of blood in which blood cells are absent, but contains proteins and other constituents of whole blood in suspension.
  4. 7. A small crescent-shaped flaps of tissue, that help prevent a backflow of blood.
  5. 10. circulatory system in which the blood makes two distinct circuits
  6. 12. Any substance that causes the body to make an immune response against that substance
  7. 15. carries deoxygenated blood towards your heart and are often located close to your skin
  8. 16. deoxyribonucleic acid is a long molecule that contains our unique genetic code.
  9. 19. the functional blood supply to all body tissue
  10. 21. heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart.
  11. 24. blood that has been exposed to oxygen in the lungs
  12. 25. a type of white blood cell responsible for fighting germs
  13. 26. A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system.
Down
  1. 1. A large vein that carries blood to the heart from other areas of the body
  2. 3. The soft, spongy tissue that has many blood vessels and is found in the center of most bones
  3. 5. carry blood from the right side of the heart to the lungs
  4. 8. large blood vessels that carry blood from your heart to your kidneys
  5. 9. movement of anything generally from a region of higher concentration to a region of lower concentration
  6. 11. a type of white blood cell responsible for creating antibodies
  7. 13. a group of cells that have similar structure and that function together as a unit
  8. 14. a protein produced by the body's immune system when it detects harmful substances, called antigens
  9. 17. the hollow opening or the space inside the blood vessel.
  10. 18. the largest artery of the body and carries blood from the heart to the circulatory system
  11. 20. an organ that pumps blood through your body.
  12. 22. pieces of very large cells in the bone marrow called megakaryocytes.
  13. 23. dividing wall between two chambers, such as that between the nostrils or the chambers of the heart