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Health · Facts & stats

Body facts & stats

7 fact-checked facts about the human body and how it works, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

How many bones does a typical adult human have?

Answer206

Babies are born with more bones, and many fuse over time.

Which organ pumps blood around the body?

AnswerHeart

The heart beats roughly 100,000 times a day.

Going deeper

What is the longest bone in the human body?

AnswerFemur

The femur is the thigh bone.

What is the smallest bone in the human body, found in the ear?

AnswerStapes

The stapes is only a few millimeters long.

How many chambers does the human heart have?

AnswerFour

Two atria and two ventricles.

Expert level

How many permanent teeth does a typical adult have, including wisdom teeth?

Answer32

That count includes four wisdom teeth.

Which protein in red blood cells carries oxygen?

AnswerHemoglobin

Iron in hemoglobin binds oxygen.

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