Anatomy and physiology revision

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Across
  1. 2. one of the structures in the upper respiratory system
  2. 5. muscle that contracts during voiding
  3. 7. reduces the surface tension in the alveoli
  4. 8. part of the conducting airways that are not involved in gas exchange
  5. 10. the primary function of the respiratory system (2 words, no space between words)
  6. 12. the urine forming organ
  7. 13. where the coronary arteries originate
  8. 14. a hormone that stimulates the bone marrow to produce RBC
  9. 16. blood flow is calculated based on the following way
  10. 17. cardiac valves open and close based on this
  11. 18. the transport system of the cardiovascular system
  12. 21. the inner most covering of the heart
  13. 23. the amount of air moved in and out of the lung with each normal breath (2 words, no space between words)
  14. 24. these structures contain valves to aid in the return of blood to the heart
Down
  1. 1. the coronary arteries fill during ....
  2. 3. the second phase of urine formation (2 words, no space between word)
  3. 4. this structure secretes a small amount of fluid to reduce friction
  4. 5. main muscle involved in breathing
  5. 6. these stimulate other cardiac muscle cells (2 words, no space between words)
  6. 9. the term used to describe the contraction of the heart muscle
  7. 11. considered the functional unit of the kidney
  8. 15. one of the atrioventricular valves (2 words, no space between)
  9. 19. initiates the renin-angiotensin-adosterone pathway
  10. 20. the structure in the kidney that allows filtration of fluid and small molecules
  11. 22. this lung has 3 lobes