CV & Respiratory Anatomy

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Across
  1. 4. the natural pacemaker of the heart and receives signals from the brain
  2. 6. these structures stop blood flowing back through the heart
  3. 8. the body
  4. 10. The name of the membrane that surrounds the lungs and "sticks" it to the diaphragm
  5. 12. the part of the CV system that carries blood between the heart and the lungs
  6. 13. cava vein that carries blood to the heart from other areas of the body
  7. 15. the part of the CV system that carries blood throughout the body
  8. 16. Each haemoglobin molecule can carry "___" molecules of oxygen
  9. 17. This is carried by Haemoglobin in the blood
Down
  1. 1. this blood vessel typically has the lowest pressure and requires muscular contractions to move the blood through them
  2. 2. This type of muscle is only found in the heart
  3. 3. The air-sacs where gaseous exchange occurs
  4. 5. The opposite of expiration
  5. 7. The smallest blood vessel in the human body
  6. 9. The process of gases moving between tissues
  7. 11. main artery that carries blood away from the heart
  8. 14. these blood vessels distribute O2 rich blood