Parts of Human Respiratory System (With diagram) (Doubt)
List of seven parts of human respiratory system: 1. Nostrils 2. Nasal Cavities 3. Internal Nares 4. Pharynx 5. Larynx 6. Trachea and Primary Bronchi 7. Lungs. Part # 1. Nostrils (External Nares): Holes of the nose are called nostrils (external nares). These are paired openings that open into two nasal cavities. Part # 2. Nasal Cavities: Two nasal cavities [...]