One of the best ways to learn about the heart is to watch it work. But how can you do that, considering that if you open up the thoracic cavity, then slice open the heart, you'd break it?
But biomedical science has shown us another way to see the parts of the heart and how they work. It's called echocardiography.
It's a technique that uses the same technology as the sonograms you've seen of fetuses inside their mother's belly. Basically, it bounces sound waves through the body and makes an image of whatever bounces back (an echo). But echocardiography is adapted specifically to the heart and its function.
Want to see echocardiography in action and better visualize heart function? Try watching this video.
Video source: my-ap.us/WnyEXi
Image credit: Patrick J. Lynch, medical illustrator
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