Presence of cartilaginous ring in respiratory tract act as:
Correct answer: D. All of the above
- A. Support
- B. Keep passage open
- C. Prevent collapsing
- D. All of the above
Explanation
A. Support: The rings provide structural support to the trachea and bronchi, helping to maintain their shape and prevent collapse during inhalation. B. Keep passage open: The rigidity of the cartilaginous rings helps to keep the airway passage open, allowing for the smooth passage of air into and out of the lungs. C.Prevent collapsing: As mentioned in option A, the cartilaginous rings prevent the trachea and bronchi from collapsing, especially during inhalation when negative pressure is generated. Therefore, option d is correct.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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