Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns ...

Originally appeared on the NOVA Web site Cut to the Heart. Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and ...

One halcyon spring day in 1903, the 69-year-old anatomist and naturalist Dr. James Bell Pettigrew sat at the top of a sloping ...

It also shows how the pacemaker cells restart her heart after the surgery. This short film is from the BBC series, Inside the Human Body. The 3D footage brings the topic to life and would enhance ...

In the attempt to calculate the power of the human heart for a given time, we shall arrive at some curious and interesting, not to say astonishing results. Few would credit, at first, the ...