and intertitles to illustrate human anatomy and physiology. Beginning with the organs of respiration, it highlights the structure and function of the nose, larynx, trachea, bronchi, and lungs ...

In contrast, diffusion of gases between inhaled air entering the lungs and capillaries occurs within the lungs. Circulation in the fish is accomplished by a two-chambered heart, whereas a four ...

Respiratory system - AQA The respiratory system transports oxygen from the air we breathe, through a system of tubes, into our lungs and then diffuses it into the bloodstream, whilst carbon ...