Body Facts About Anatomy

Artists have long used a simple rule: your head is approximately one-eighth of your total height. This classical proportion has been used since ancient Greece to draw the ideal human figure.

It is impossible to hum if your nose is plugged.

Most people cannot lick their own elbow due to the length of the human arm and the limited range of motion in the shoulder and elbow joints.

Like fingerprints, everyone's tongue print is different.

Your stomach produces a new layer of mucus every few days to protect itself from being digested by its own acid.

Your heart will pump about 212 million liters in its lifetime.

The adult human brain weighs about 3 pounds (1,300-1,400 g).

Your skin is actually an organ.

The smallest medically recognized penis size is called micropenis - defined as less than 2.75 inches when stretched in adults, affecting about 1.5 in every 10,000 male newborns.

Your skeleton keeps growing until you are about 35, then you start to shrink.

You mostly breathe from only one nostril at a time!

Babies are born without knee caps.

Your ribs move about 8 million times a year, every time you breathe!

Like fingerprints, everyone's tongue print is different!

Human thigh bones are stronger than concrete!

You're born with 300 bones, but when you get to be an adult, you only have 206!

Human teeth are almost as hard as rocks!

The human heart creates enough pressure to squirt blood 30 ft.

If you were to roll a lung from a human body and out flat it would be the size of a tennis court.

Fingernails grow nearly 4 times faster than toenails!