Circulatory System and Aerobic Respiration

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Across
  1. 4. These branch off the the bronchi to deliver air to the alveoli
  2. 5. The name for the lower chambers of the heart
  3. 6. Microscopic air sacs where gas exchange takes place
  4. 8. dioxide Waste gas from aerobic respiration which enters the blood from the cells in the body and is expelled from the lungs as we breathe out (6,7)
  5. 9. Cells in the body need oxygen in order to release ______ from glucose through aerobic respiration
  6. 12. This is also known as the windpipe
  7. 14. The cell organelle responsible for releasing energy through aerobic respiration
  8. 17. The smaller side of the heart that pumps deoxygenated blood
  9. 18. One way doors found in the heart and in blood vessels to stop blood from flowing in the wrong direction
  10. 19. The process of releasing energy by reacting glucose with oxygen. It is carries out in the mitochondria in cells (7,11)
  11. 21. The larger side of the heart that pumps oxygenated blood
  12. 23. Muscles between the ribs that are used to help us breathe (11, 7)
  13. 24. Gas which enters the blood in the lungs and is delivered to all the cells in the body to be used for aerobic respiration
Down
  1. 1. The name for the upper chambers of the heart
  2. 2. One of the two branches which split off the trachea
  3. 3. The chamber of the heart which receives oxygenated blood from the lungs through the pulmonary veins (4,6)
  4. 5. Blood vessels that carry blood towards the heart
  5. 7. Blood vessels that carry blood away from the heart
  6. 10. The chamber of the heart which receives deoxygenated blood from the rest of the body through the vena cava (5,6)
  7. 11. Tiny blood vessels that deliver oxygen to cells and take away carbon dioxide
  8. 13. The chamber of the heart which pumps oxygenated blood through the aorta to the whole body (4,9)
  9. 15. The chamber of the heart which pumps deoxygenated blood into the pulmonary arteries towards the lungs (5,9)
  10. 16. Muscle underneath the lungs which moves downwards as we breathe in
  11. 20. Largest artery in the body. It receives oxygenated blood from the left ventricle
  12. 22. Bones which protect the lungs