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JINTAI3D

For everyone learning the human body.

Give your knowledgea new dimension.

The anatomy in your textbook comes to life. Muscles, bones, and organs. Turn them around. Open up the layers. Find the connections. Make your browser a place to explore the human body.

Open anatomy viewer

No installation. Just your browser.

Z-Anatomy model showing the muscles and bones of the human body
Drag or use the arrow keys to rotate the anatomical model. On a phone, swipe horizontally to rotate.Loading the 3D specimen
An actual Z-Anatomy model
Drag to rotate
Try the interactive model

Beyond knowing the names.See where things are.Discover how they connect.

The overlap of muscles. Their position around a bone. Things a single illustration can make hard to see. Change your perspective and explore at your own pace. JINTAI 3D is made for those small discoveries.

A 3D model of the human body
Drag to rotate

One human body.So much to discover.

Switch between the views below and discover anatomy in three dimensions.

Look beyond the overlap.

Separate bones and muscles into individual structures. Open up their overlapping layers and connect the whole body with its parts.

The exploded view moves structures from their anatomical positions to make them easier to see.

Open anatomy viewer

Actual BodyParts3D data

Beneath the muscles.A world within.

Organs sheltered by bone. Structures woven together. Explore the inside of the body from your own perspective.

Open the whole-body viewer
Whole-body model with internal organs

Get closer to the organs that interest you.

A view beneath the skeleton.Drag to rotate
0%
Scroll to look insideCC BY 4.0

The exploded view moves structures from their anatomical positions.

The desire to understandthe body has a long history.

Drawn on paper. Modeled in wax. Shared as data. The way we teach anatomy keeps evolving.

  1. 1543

    The body, on paper.

    Vesalius publishes the Fabrica, using detailed anatomical illustrations to communicate the structures of the human body.

    US National Library of Medicine
  2. 18th c.

    Knowledge takes shape.

    Anatomical wax modeling flourishes in Florence, giving teaching materials a physical form and a third dimension.

    University of Florence
  3. 2007

    Anatomy becomes open data.

    BodyParts3D is released in Japan, providing a shared foundation for the shapes and positions of human body structures.

    Database Center for Life Science
  4. Today

    The next chapter is in your hands.

    Open models, made accessible in a browser. JINTAI 3D brings anatomical knowledge closer to the people learning it.

    Explore our model sources
A woodcut of the muscles from Vesalius’s 1543 Fabrica.
Andreas Vesalius, 1543.
Courtesy of the National Library of Medicine.
Image credits

For people whose knowledgemakes a difference to others.

Anatomy for your everyday.

A shared view of the body.

Some relationships are difficult to describe in words alone. Rotate the model and reveal structures to create a shared visual reference when talking about the body.

Open anatomy viewer

An open doorto understanding anatomy.

Specialist learning should be easier to access and afford. We build on anatomy models that the world already shares.

JINTAI 3D uses open data from BodyParts3D and Z-Anatomy. By crediting the people behind these resources and preserving their licenses, we connect their work with a browser-based learning experience.

No room for a physical model? No specialist software?

All you need to get started is a browser. Open the current learning tools and see how they fit the way you study.

Built on shared knowledge.

Follow your curiosity.Find your way in.

Explore with your hands. Put your knowledge to the test. Take time with each structure. Three ways into anatomy.

Explore & understand

JINTAI Model

Find it. Turn it.Make the connection.

Muscles, bones, and organs. Rotate the body, isolate a structure, and open up the layers. Keep what you want to see and explore relationships a flat diagram can make hard to follow.

  • Search by name
  • Isolate a structure
  • Separate the layers
Open JINTAI ModelStart with the organs
An actual view of JINTAI Model3D credits

Try & discover

JINTAI Challenge

You’ve seen it.Can you name it?

Touch a muscle. Recognize a shape. Find a structure beneath the layers. Turn observation into a challenge and discover what you know, five questions at a time.

  • Touch
  • Name
  • Shape
  • System
  • Left or right
  • Peel & find

Six ways to play. Five questions per challenge.

Try JINTAI Challenge
Try one question here

Try one question. What is this bone?

Preparing the specimen…

Drag to rotate · Or use the arrow keys

Z-Anatomy · Model source · CC BY-SA 4.0

Actual mobile screen · Try it in the app

Read & go deeper

JINTAI Book

Anatomy comesoff the page.

A 3,582-page atlas, from head to lower limb. Search for a structure, turn its specimen around, and see how it sits within the body. Make time to get to know each part.

  • Japanese & English name search
  • Rotate & enlarge specimens
  • See surrounding structures
Open JINTAI Book
Actual screens from JINTAI Book3D credits
3,582pages to explore

From head to lower limb. From one structure to the whole body.

Where will youstart today?

All three experiences open without registration.

The Book and Challenge learning interfaces are primarily in Japanese.

Before you begin.

How much does it cost?

The current anatomy viewer, book, and challenges can be opened without registration or payment. Future paid plans and pricing have not been set. Our aim is to make anatomical learning easier to access.

Can I use it on my phone?

Use a browser that supports WebGL. The interface adapts to phones, tablets, and computers. Loading 3D models requires an internet connection; performance depends on your device and connection.

Which languages are available?

This page and the anatomy viewer’s core interface are available in Japanese and English. Some explanations and learning features are primarily in Japanese. Some model labels remain in English.

Can I use it for diagnosis or treatment?

This is an educational anatomy reference, not a tool for diagnostic, treatment, or surgical decisions. The models do not cover every structure or individual variation, and anatomical accuracy in this application has not been fully reviewed by specialists. Some explanatory content was created with AI assistance.

A world of anatomy.In your hands.

Let today’s small discovery become tomorrow’s understanding.

Open anatomy viewer