AICE Biology Chapter 8 Vocab

12345678910111213141516171819
Across
  1. 3. An almost colorless fluid present in lymph vessels; similar in composition to blood plasma.
  2. 7. Red pigment found in red blood cells that reversibly binds to oxygen.
  3. 8. A patch of muscle in the wall of the right atrium whose rate of contraction is faster than the rest of the cardiac muscle and initiates the contraction of the heart.
  4. 12. Originating in muscle tissue rather than nerve impulses.
  5. 15. The sequence of events taking place during one heart beat.
  6. 16. The smallest type of blood vessel whose function is to facilitate the exchange of substances between blood and tissues.
  7. 18. Blood vessels that carry blood away from the heart.
  8. 19. A hollow muscular organ that pumps blood through the circulatory system by rhythmic contraction and dilation.
Down
  1. 1. Red liquid that circulates in the arteries and veins carrying oxygen to and carbon dioxide away from the tissues of the body.
  2. 2. Valve with two flaps that lies between the left atrium and the left ventricle.
  3. 4. Yellowish liquid component of blood that holds blood cells and proteins.
  4. 5. Blood vessels that carry blood to the heart from other parts of the body.
  5. 6. Maintaining a relatively constant environment for the cells within the body.
  6. 8. Circulation from the heart to the lungs and back.
  7. 9. Circulation from the heart to the rest of the body and then back to the heart.
  8. 10. Valve with three flaps that lies between the right atrium and the right ventricle.
  9. 11. The muscle tissue that makes up most of the heart.
  10. 13. Large veins that carry deoxygenated blood to the heart.
  11. 14. A partition separating the two chambers of the heart.
  12. 17. The main artery of the body.