Cardiovascular (Circulatory) System

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Across
  1. 2. any of the fine branching blood vessels that form a network between the arterioles and venules.
  2. 5. Carries blood TO the heart
  3. 6. These are synthesized in red marrow and help to clot blood
  4. 9. a vein carrying oxygenated blood from the lungs to the left atrium of the heart.
  5. 11. the thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves.
  6. 12. the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.
  7. 14. These are larger than erythrocytes and there are 5 types of them
Down
  1. 1. the middle muscular layer of the heart wall
  2. 3. the main artery of the body, supplying oxygenated blood to the circulatory system. In humans it passes over the heart from the left ventricle and runs down in front of the backbone.
  3. 4. It is a chamber of the heart which receives blood from an atrium and from which blood is forced into the arteries
  4. 5. This is a large vein that carries deoxygenated blood into the heart
  5. 7. Carries blood AWAY from the heart
  6. 8. the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane.
  7. 10. They are each of the two upper cavities of the heart from which blood is passed to the ventricle
  8. 13. These are disk shaped and made of hemoglobin