Inside our body, organs work hard in places we cannot see.
The brain thinks and gives orders, the heart pumps blood everywhere, the lungs breathe, and the bones hold us up.
Because they work together, we can run, laugh, and study every day.
Move the slider to pick each organ and see what it does.
What's Inside Our Body?
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Visualizing major body organs (brain, heart, lungs, bones)
0 Brain
What Each Organ Does
🧠 Brain — The Body Commander
①The brain is inside the head
②Thinks, remembers, and commands the body
③Think 'raise your hand' → brain sends a signal → hand goes up
❤️ Heart — A Tireless Pump
①Heart beats on the left side of the chest
②Beats about 100,000 times a day!
③Sends blood with oxygen and nutrients all over the body
🫁 Lungs — Balloons of Air
①Lungs expand when you breathe in
②Take in oxygen, release carbon dioxide
③We breathe about 20,000 times every day!
🦴 Bones — Body Pillars
①We have about 206 bones
②Without bones our body would be jelly-like
③Bones even make blood — amazing!
Summary
🎯 Body Summary
①Brain → thinks and commands
②Heart → pumps blood
③Lungs → breathe
④Bones → support the body
⑤All these organs work together to keep us healthy!
Examples and Unit Test
Example 1
What does each of the brain, heart, lungs, and bones do in our body?
1
The brain thinks and gives commands. The heart sends blood all over the body.
2
The lungs let us breathe. The bones hold the body up firmly.