How Well Do You Really Know The Human Body?

Think you know your kidney from your elbow? Prove it here.

There's no multiple choice here, just type what you think is the correct answer in the box. You get three guesses before we give up and tell you. Let's go!

1. Let's start easy.

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4. Things are about to get a bit harder.

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7. Keep going...

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So... how did you do?