Respiratory & Immunity

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Across
  1. 2. The sacs where gas exchange occurs
  2. 7. The body’s response to an unrecognized substance
  3. 12. A reflex that acts as a barrier
  4. 14. The process of bringing oxygen into the lungs
  5. 15. The organ that connects the larynx to the bronchi
  6. 16. Type of immunity that the body develops after an infection
Down
  1. 1. The second line of defense includes inflammation and ___
  2. 2. The abnormal substances recognized by antibodies
  3. 3. This organ has three lobes on the right side
  4. 4. The first line of defense includes mechanical barriers like ___
  5. 5. The main muscle for ventilation
  6. 6. The structure that prevents food from entering the airway
  7. 8. White blood cells that produce antibodies
  8. 9. The two layers covering the lungs
  9. 10. The main function of the immune system
  10. 11. The respiratory system's upper tract includes the ___
  11. 13. This type of immunity is passed from mother to fetus