Only 1/6 of the human eyeball is exposed.

Only 1/6 of the human eyeball is exposed

More from the Human Body Facts niche...

Human Body Facts

When you swallow, your food travels down your oesophagus to your stomach

Human Body Facts

A blink typically lasts 100-150 milliseconds

Human Body Facts

The scrotum – which holds sperm – sits outside a man’s body. This is

Human Body Facts

Eyes heal quickly. With proper care, it takes only about 48 hours to

Human Body Facts

While reading a page of print the eyes do not move continually across

Human Body Facts

Priests in ancient Egyptian temples plucked every hair from their