The respiratory system is the part of our body responsible for breathing. It includes organs like the lungs, nose, mouth, throat, and diaphragm. When we breathe in, oxygen enters our body and travels to the lungs, where it is transferred into the bloodstream. At the same time, carbon dioxide, a waste product, is removed from the bloodstream and exhaled out of the body. This process is essential for supplying oxygen to our cells and removing waste gases, helping us stay alive and healthy.