The heart's electrical system can be measured by ECG — the P wave, QRS complex, and T wave each represent specific events.
Fact #9306
👍 0 · 👎 0
More Human Body Facts
Water covers more than 70% of Earth's surface.
Fact #149 · Human Body
Atmospheric rivers can deliver massive amounts of rainfall.
Fact #845 · Human Body
There are more possible shuffles of a deck of cards than seconds since Earth formed.
Fact #1675 · Human Body
Fossils form when organisms are preserved in sediment over millions of years.
Fact #678 · Human Body
The human body has over 600 muscles.
Fact #160 · Human Body
An African elephant's ears help regulate its body temperature.
Fact #445 · Human Body
Learning involves changes in neural connections.
Fact #986 · Human Body
The steam engine powered early industrial machinery.
Fact #1544 · Human Body
Want more facts?
We have over 11,491 facts across 16 categories.