General Function

• General Functions of the Respiratory System:

  1. Gas exchange
  2. Regulation of blood pH
  3. Roles in phonation and olfaction
  4. Protection
• 1. Roles in phonation and olfaction

  • Production of sounds (vocal chords) and ability to smell (olfactory receptors inside the nasal cavity)
• 1. Protection

  • Respiratory tracts works in two ways: 
  • It contains cilia which allows/pushes mucus outward so that it could transport along with them the microorganisms outside your body (coughing reflex)
  • Act as a protectant by Type III Pneumocytes that secretes alveolar macrophages that ingest or phagocytize the bacteria that goes inside your alveoli