This comprehensive presentation on respiration explores how our bodies extract energy from food and maintain vital gas exchange. It details the processes of cellular respiration, contrasting aerobic pathways—which use oxygen to produce energy—with anaerobic pathways that operate without oxygen. The slides then shift focus to the human respiratory system, explaining the structure and function of the lungs, alveoli, and associated respiratory organs. Topics include the mechanics of inspiration and expiration, pulmonary volumes and capacities, and how the respiratory center in the brain regulates breathing. #Respiration, #CellularRespiration, #GasExchange, #LungVolumes, #AerobicRespiration, #AnaerobicRespiration