Ana3D is an interactive 3D atlas of human anatomy that runs in the browser. It is built only from openly licensed scientific data, and every model on the site says where it comes from.
What you can do here
- Open a model of the whole body, of a region or of a single organ, and rotate, zoom and select any structure.
- Switch layers on and off, make them transparent, isolate one structure or hide what is in the way.
- Cut the model along the sagittal, coronal or transverse plane and see filled cut faces, the way a section looks in imaging.
- Pull the parts of a model apart to see how they fit together.
- Test yourself: find a named structure on the model, or name the one that is highlighted, and review with spaced repetition.
- Read a page for every structure: its name, its Latin name, where it sits in the body, what it is part of and what belongs to it.
What the atlas contains
| Atlases | 24: whole bodies, regions (knee, head and neck, abdomen, limbs), organs (brain), and twelve real, anonymised CT cases |
|---|---|
| Structures | more than 9,000, in one shared graph: the same femur is one entry, shown in every atlas that draws it |
| Languages | English, Vietnamese, Spanish, Brazilian Portuguese, French, German, Indonesian, Thai, Japanese, Korean, Simplified Chinese |
| Identifiers | Terminologia Anatomica (TA2, TA98), Foundational Model of Anatomy (FMA), UBERON and Wikidata, on each structure page |
The models come from eight open sources, among them BodyParts3D, the HuBMAP Human Reference Atlas, Z-Anatomy, Open3DModel, the Voxel-Man segmentation of the Visible Human, the SPL atlases of the Surgical Planning Laboratory, the Allen Human Reference Atlas and the TotalSegmentator CT data set. The page on sources and licences lists each of them with its licence and its credit line.
Who it is for
Ana3D is made for people who learn anatomy: students of medicine, nursing, physiotherapy and the health sciences, and anyone who teaches them. The guide to studying with 3D models suggests a way to use it.
What it is not
Ana3D is not a medical device. The models and the texts are for learning. Nothing on this site is meant for diagnosis or treatment, and it does not replace a textbook, a teacher or clinical training.
The models show typical anatomy as each source built it. Real bodies vary, and several known defects of the source data are shown as published rather than silently corrected.
How far the content has been checked
We say plainly what has been reviewed and what has not. English names come from established terminologies. Names and definitions in the other ten languages are machine translations that no anatomist has reviewed yet, and they are marked as such on every page. The guides are drafted with AI assistance from the atlas data and carry a notice until a named anatomist has reviewed them. The editorial policy explains this in detail.