Respiratory crossword

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Across
  1. 1. (5,4) Waste product produced by anaerobic respiration
  2. 7. What are the muscles between the ribs called?
  3. 8. Number of polypeptide chains in haemoglobin
  4. 9. What is the dome shaped muscle that separates the abdominal cavity from the thoracic cavity?
  5. 11. (5,6) Which part of the upper respiratory tract adds moisture and warmth to inspired air
  6. 12. What is the funnel shaped structure that connects the nasal cavity and mouth to the larynx
  7. 13. Which type of pneumocyte produces surfactant
  8. 15. What part of the respiratory anatomy closes to prevent food from entering the windpipe
  9. 16. Which bones in the nasal cavity cause turbulence for inspired air
  10. 17. Which of the two functional respiratory zones does the upper airway come under
Down
  1. 2. where does gas exchange occur
  2. 3. Which type of pneumocyte are the true alveolar cells for gas exchange?
  3. 4. (7,4) Where do the chemoreceptors reside that detect an increase in Hydrogen ions
  4. 5. (8,11) Movement of oxygen into the lungs and into the blood stream and movement of carbon dioxide from the blood to the lungs
  5. 6. (8,11)Movement of oxygen from the blood to tissue cells and carbon dioxide from tissue cells to blood
  6. 10. What is the opening between the vocal cords known as?
  7. 14. Respiration begins with the innervation of which muscle by the DRG?