What is the function of the cartilage in the trachea?
To keep the trachea open when the pressure changes.
The trachea, also known as the windpipe, is a tube-like structure that connects the lungs with the larynx (voice box) and allows air to flow in and out. The trachea has a crucial role in respiration, and its structure is reinforced by rings of cartilage, known as tracheal cartilage.
The primary function of tracheal cartilage is to provide support and maintain the shape of the trachea. The rings of cartilage are C-shaped and are located on the anterior and lateral surfaces of the trachea. The open part of the C shape of the cartilage rings faces the esophagus, allowing for expansion of the trachea during swallowing.
The presence of cartilage prevents the trachea from collapsing during inhalation and exhalation. During inspiration, the negative pressure in the trachea may cause it to collapse, but the cartilage rings provide resistance and maintain the airway open. During exhalation, the cartilage rings prevent the airway from closing prematurely, ensuring that the air flows out of the lungs smoothly.
In summary, the function of cartilage in the trachea is to provide structural support and maintain the patency of the airway.
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