Using graphic animation, this video shows the step by step process for removing tonsils and adenoids, including these anatomical structures that are located in the throat.

This video shows the constant battle between the two main cell types in bone, osteoblasts and osteoclasts. Osteoblasts builds bone while osteoclasts dissolve bone for renovation and remodeling. The video explains how these cells influence the strength of bone throughout life.

The influenza virus, the pathogen that causes the flu, infect the cells of the respiratory system as shown in this animation. The immune system response to influenza virus infection is also shown.

This animation provides a very brief overview of body anatomy, from the entire body down to subcellular organelles.