Red blood cells are looked at more closely, and some are shown in greater magnification. A demonstration and animation show the method for counting red blood cells to gain an indication of health in the patient. Next, haemoglobin is separated from red blood cells using ether. The haemoglobin is shown greatly magnified. White blood cells are examined next, and an animation shows the movement of a white blood cell from a capillary to body tissue. An animation shows a leukocyte or phagocyte devouring a foreign particle in the blood. Platelets, which assist in the process of clotting blood, are shown in magnification. An animation shows a test tube of blood clotting, as it is exposed to air.