Inside our body, organs work without rest 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, pick the brain, heart, lungs, or bones, and each organ's place and job come into view.
What's Inside Our Body?
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Visualizing major body organs (brain, heart, lungs, bones)
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
③An adult breathes about 20,000 times every day; children breathe even more often!
🦴 Bones — Body Pillars
①Children have more bones; they fuse as we grow, so an adult has about 206
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!
⑥Lungs take in oxygen; the heart carries it in the blood
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.