Ding Ding Ding Ding Ding: Your nerves are what feel pain., Your stomach chemically and mechanically breaks down food., Red blood cells are made in a way the optimizes their surface area., It takes very little time for the message from your brain to reach where you want it to., Your lungs fill with air as you breathe in., Error Error code: You chose wrong: Only your muscles hold you up., If you breathed rapidly you would be helping yourself. body, Blood travels through the bones., Your heart is where emotions come from., You would start dying after 3 days without sleep.,

Whack-a-body systems

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