The human body in 3D, free, for curious kids and adults

Spin a real human body in your browser. Tap any bone, muscle, organ, vessel or nerve and read what it does. Then watch it work: short 3D lessons show the heart beating, air moving, a drop of blood on its round trip, and more.

Open the explorer See the lessons

The Corpus 3D body: muscles, bones and vessels seen from the front

No account, no ads, nothing to pay. It runs on a phone, a tablet or a laptop, straight from the web address.

Two ways to read everything

Every text has a Simple and a Deep version. Simple is one short paragraph a nine-year-old can read alone. Deep is the full story, for when they ask why. A 🔊 button reads either one aloud.

See it move

Ride one drop of blood out of the heart and down the aorta. One drop of blood, the whole trip

Watch the brain light up, one region at a time. Your brain

DNA up close: a twisted ladder of four letters. What DNA is

Nine months, from one cell to a baby. Where babies come from

11 lessons

How the heart pumps — Watch your heart beat, then follow the blood through its four rooms.
What happens when you breathe — Follow the air from your nose to your lungs, and see the muscle that pulls it in.
Where your food goes — Follow a bite of food from your mouth through the long, winding tube inside you.
What DNA is — Cell, chromosome, twisted ladder, and reading a real gene
Your brain — What each part does, how one neuron fires, and how neurons are made
Ouch! Touching a hot pan — Your hand lets go before you even feel the burn. Follow the signal through the nerves.
Body guards: fighting a germ — A germ gets in through a cut. Watch the lymph nodes catch it and send help.
One drop of blood, the whole trip — Ride one drop of blood from the heart to a toe and back, then out to the lungs.
Messengers: hormones — Glands drop chemical messages into your blood. Watch adrenaline, insulin and thyroxine ride out to the whole body.
Where babies come from — Sperm and egg, one cell becomes many, nine months, and birth
Muscles pull bones: bend your elbow — A muscle can only pull, never push. Watch the biceps squeeze and swing the forearm up, and the triceps pull it back.

And in the explorer

Every part. 1686 named bones, joints, muscles, organs, vessels, nerves and lymph nodes. Search one and the camera flies to it.
Layers. Turn bones, muscles, organs, vessels, lymph and nerves on and off, and fade any of them to see through.
Slice. A slider cuts the body open, so you can look inside.
Male and female. One tap switches the body.
Find the part. A quiz on bones, muscles and organs: ten rounds, and a wrong answer shows you the right one.
Works offline. After one full visit it keeps working without a connection, and it adds to your home screen like an app.

For parents and teachers

Send the address to a class or a family group and it opens on whatever they have. Every part and every lesson has its own link, so you can point straight at the femur or at the breathing lesson. Something wrong or missing? There is a feedback form in the menu.

Where the body comes from

The 3D models are Z-Anatomy, an open anatomy atlas built on BodyParts3D, and the definitions come from Wikipedia. The models and texts on this site are shared the same way, CC BY-SA 4.0. Full credits.

Open the explorer