Respiratory System me

3. division between upper an lower respiratory system
6. located below the lungs, is the major muscle of respiration
8. two large tubes that carry air from your windpipe to your lungs
9. main organ in the respiratory system
11. Also known as the windpipe, air travels down the nose, through your larynx, and down your windpipe
13. pair of soft tissue masses located at the rear of the throat (pharynx)
14. Pleural layer covering the lungs
16. Separates oral and nasal cavities
17. the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus
18. Conductors to the nasal cavity
19. The ducts that lead to the alveoli

1. system in charge of gas exchange between pulmonary blood and external environment
2. smallest conducting respiratory passageways
4. Pleural layer covering the thorax walls
5. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords
7. Actual site of gas exchange
10. Infection that inflames air sacs in one or both lungs, which may fill with fluid
12. Purpose of mucose
13. butterfly-shaped gland in your neck, just above your collarbone
15. condition in which the air sacs of the lungs are damaged and enlarged, causing breathlessness