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 ...

The right-hand side of the heart is responsible for pumping deoxygenated blood to the lungs. The left-hand side pumps oxygenated blood around the body. Each side of the heart consists of an atrium ...