Three Primary Organs of the Respiratory System
The respiratory system’s core organs:
- Nose/Nasal Cavity: Filters, warms, humidifies air; olfaction.
- Trachea: Cartilaginous conduit; mucociliary clearance.
- Lungs: Bronchial tree → alveoli (gas exchange surface ~70 m²).
Supporting structures: pharynx, larynx, bronchi, diaphragm, intercostals, pleura. Functionally, the system conducts air (conducting zone) and exchanges gases (respiratory zone).
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