Q. Blockage in respiratory passage in humans is prevented due to the presence of (Solved)
1. Epiglottis
2. Larynx
3. Alveoli
4. ‘C’ shaped cartilagenous rings.
- d. ‘C’ shaped cartilagenous rings.
1. Epiglottis
2. Larynx
3. Alveoli
4. ‘C’ shaped cartilagenous rings.