From YouTube, produced by Nucleus Medical Art
This 3D medical animation shows how antibodies stop harmful pathogens from attaching themselves to healthy cells. It begins by showing normal red and white blood cells flowing through the blood stream. Next, a single pathogen appears onscreen slowly moving toward the surface of a cell. Pathogens continue to attach to the white blood cell. During the immune system response, Y-shaped antibodies begin attacking the pathogen, binding to its surface. The antibodies completely block the pathogen from attaching to the blood cell. A macrophage then appears onscreen to engulf and digest the pathogen. Set to music. 53 sec.