How breathing works: a 3D journey through the breathing process In this captivating 3D animation, explore the mechanics of breathing. Watch how your diaphragm and intercostal muscles work together to draw air into your lungs, creating negative pressure that allows oxygen to fill the alveoli. See how oxygen transfers to your blood while carbon dioxide, a waste product, is expelled during exhalation. Whether you’re a medical student, healthcare professional, or simply curious about the human body,