Made of little things.

# Anatomy data attribution

BodyParts3D, © The Database Center for Life Science licensed under CC Attribution
4.0 International.

Source: https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html
License statement: https://dbarchive.biosciencedbc.jp/en/bodyparts3d/lic.html
License: https://creativecommons.org/licenses/by/4.0/

The official archive's license page was updated on 2025-02-27 to CC BY 4.0. The
2013 OBJ files still contain older CC BY-SA 2.1 Japan headers; this adaptation
uses the current license offered by the original archive, not a third-party
relicensing claim. Keep this notice with the bundled data.

Adaptation: axis/unit conversion, illustrative fitting to the MPFB posing rig,
vertex welding, geometry reduction, joining source pieces by FMA concept, and
binary packaging. Muscles use approximate blended rig weights; organs use axial
rig bindings. These selected structures derive from the 4.0 IS-A archive. It is a reference
illustration and has not been clinically validated. Fitting and animation are not
personal anatomy measurements or a biomechanical simulation.

Source-file hashes and output hashes are in muscles-provenance.json and
organs-provenance.json. Rebuild with scripts/prepare-atlas.py. The repository's MIT license applies to app code;
it does not replace this anatomy data's attribution license.

The 12 male reproductive structures are also adapted from BodyParts3D under
CC BY 4.0. The 10 female reproductive structures (IDs prefixed `schematic-`) are
original MIT-licensed illustrative geometry, not atlas scans. Their schematic
status appears in selectable labels. Layout references:
https://openstax.org/books/anatomy-and-physiology-2e/pages/27-2-anatomy-and-physiology-of-the-female-reproductive-system

Region-constrained muscle fitting and a common palm/wrist frame correct the
previous nearest-bone distortions. Rebuild with prepare-atlas.py, followed by
prepare-reproductive.py. Existing mesh triangle addresses are checked before
replacement; positions and weights may change without changing those addresses.