How the heart actually pumps blood - Edmond Hui | Science |
For most of history, scientists weren’t quite sure why our hearts were
beating or even what purpose they served. Eventually, we realized that
these thumping organs serve the vital task of pumping clean blood
throughout the body. But how? Edmond Hui investigates how it all works
by taking a closer look at the heart’s highly efficient ventricle

Via Beth Dichter