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Respiratory System (disorders (cystic fibrosis (recessive genetic disease…

- - - - olfactory receptors located in mucous on superior surface, moistens air and traps incoming foreign particles
    - - cavities in bones, lightens skull, resonance chambers, produce mucus
    - - air enters through nostrils
    - - muscular passage from nasal cavity to larynx
  - - - hollow muscular organ forming an air passage to the lungs and holding the chords
    - - connects larynx with bronchi, rigid because of C-shaped rings hyaline cartilage to keep always open at all times
    - - formed by divisions in trachea, enters lungs at hilus right bronchus is wider, shorter, and straighter
    - - occupy most of the thoracic cavity, apex near clavicle, base on diaphragm
    - - passageway for bronchi
    - - alveolar duct: branch from bronchioles
      - alveoli air sacts: sites of gas exchange