Answer:
Cartilage plays a crucial role in the gas exchange system by supporting and protecting the delicate structures of the respiratory system. In particular, cartilage helps to maintain the shape of the trachea (windpipe) and bronchi (airways), which allows air to flow freely through the respiratory system.
Cartilage is a tough, flexible tissue that is composed of cells called chondrocytes, as well as a strong, fibrous extracellular matrix. The cartilage in the respiratory system is mostly made up of elastic cartilage, which is highly resilient and can withstand the forces of breathing.
The cartilage in the respiratory system also helps to prevent the airways from collapsing or becoming blocked, which would impede the flow of air. For example, the cartilage rings that surround the trachea provide structural support and keep the trachea open, allowing air to pass through easily.
In summary, the function of cartilage in the gas exchange system is to support and protect the structures of the respiratory system, allowing air to flow freely through the airways and facilitating gas exchange in the lungs.