Peristalsis Animation (requires Flash plugin)

These peristalsis animations were designed for a non-majors freshman biology class and used during lecture. The first animation shows how constriction of a tube (esophagus) causes food particles to be pushed through the tube. The second animation shows that the constriction of the tube is caused by a wave of muscle contraction (red) and relaxation (blue).

You can download these animations to place them in your own web page (see source of this page for HTML code): peristalsis.ZIP