The heart is the only muscle which doesn’t take its signal from the nervous system - it has its own stimulator in the right atrium.

The heart is the only muscle which doesn’t take its signal from the

More from the Human Body Facts niche...

Human Body Facts

A healthy (non-colorblind) human eye can distinguish between 500 shades

Human Body Facts

The eye is the fastest muscle in your body – hence why when something

Human Body Facts

A single human hair can support up to 3kg

Human Body Facts

You have about the same number of hairs on your body as a chimpanzee

Human Body Facts

Your eye is the fastest muscle in your body. Hence, the phrase: “In the

Human Body Facts

Your brain stops growing when you reach the age of eighteen. After that