The trachea, commonly known as the windpipe, is a vital tube that connects the throat to the lungs. It allows air to flow in and out during breathing. The trachea is made of flexible cartilage rings that keep it open, ensuring that air can pass freely. It is lined with tiny hair-like structures called cilia, which help trap dust and other particles, keeping the airways clean. When we breathe in, air travels through the trachea and into the bronchi, which branch off into each lung. The trachea plays a crucial role in the respiratory system, working alongside other organs like the lungs and diaphragm to provide oxygen to our bodies.