The heart is a powerful muscle that pumps blood throughout the body by means of a coordinated contraction. The contraction is generated by an electrical activation, which is spread by a wave of bioelectricity that propagates in a coordinated manner throughout the heart. In this web site you will find information about the heart's function and structure along with information about some arrhythmias with many movies and interactive java applets. The contracting three-dimensional heart on the left can be rotated, zoomed, and panned by clicking and moving your mouse as indicated below.

We were awarded first prize in the first Acrobat 3D PDF contest in the Technical Publishing category (March, 2008).
Click here to view our 3D PDF interactive entry.