In today’s lesson on healthy living, students explored the respiratory system, focusing on the organs involved in breathing and their locations, including the nose, mouth, trachea (windpipe), bronchi, and lungs. The teacher emphasized the function of the rib cage and diaphragm in the breathing process and introduced a video showing how these structures work together to exchange gases, such as oxygen and carbon dioxide, in the body. The importance of distinguishing between the trachea and the esophagus, with the role of the epiglottis being highlighted, was also discussed to ensure proper pathways for air and food.