All of these maladaptations may influence performance. There is general consensus that the capacity of the respiratory system is overbuilt for the demands placed on ventilation and gas exchange by ...

This 1930s educational film provides a detailed exploration of the respiratory and excretory ... and intertitles to illustrate human anatomy and physiology. Beginning with the organs of ...

The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and ...