AICE Biology Chapter 8 Vocab

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