BodyParts3D
Whole-body anatomy, including organs
Database Center for Life ScienceFor everyone learning the human body.
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 viewerNo installation. Just your browser.
Drag or use the arrow keys to rotate the anatomical model. On a phone, swipe horizontally to rotate.Loading the 3D specimenThe 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.

Switch between the views below and discover anatomy in three dimensions.
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 viewerActual BodyParts3D data
Organs sheltered by bone. Structures woven together. Explore the inside of the body from your own perspective.
Open the whole-body viewer
Get closer to the organs that interest you.
The exploded view moves structures from their anatomical positions.
Drawn on paper. Modeled in wax. Shared as data. The way we teach anatomy keeps evolving.
Vesalius publishes the Fabrica, using detailed anatomical illustrations to communicate the structures of the human body.
US National Library of MedicineAnatomical wax modeling flourishes in Florence, giving teaching materials a physical form and a third dimension.
University of FlorenceBodyParts3D is released in Japan, providing a shared foundation for the shapes and positions of human body structures.
Database Center for Life ScienceOpen models, made accessible in a browser. JINTAI 3D brings anatomical knowledge closer to the people learning it.
Explore our model sources
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 viewerReview a muscle’s shape and its relationship to nearby structures. Compare textbook illustrations with a model as you revisit the anatomy relevant to your work.
Open anatomy viewerSearch for a name, find the structure, and change the angle. Explore the anatomy book and quizzes as you build your own routine for revision.
Open anatomy viewerSpecialist 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.
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.
Whole-body anatomy, including organs
Database Center for Life ScienceBones, muscles, and limb peripheral nerves
Gauthier Kervyn & contributorsExplore with your hands. Put your knowledge to the test. Take time with each structure. Three ways into anatomy.
Explore & understand
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.
Try & discover
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.
Six ways to play. Five questions per challenge.
Try JINTAI ChallengeTry one question. What is this bone?
Preparing the specimen…
Drag to rotate · Or use the arrow keys
Actual mobile screen · Try it in the app
Read & go deeper
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.
From head to lower limb. From one structure to the whole body.
All three experiences open without registration.
The Book and Challenge learning interfaces are primarily in Japanese.
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.
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.
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.
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.
Let today’s small discovery become tomorrow’s understanding.
Open anatomy viewer