Assignment Hub sports anatomy and thorax atlas subsets.
Source: Z-Anatomy / Gauthier Kervyn and Marcin Zielinski, derived from BodyParts3D / Kousaku Okubo, DBCLS.
Source repository: https://github.com/Z-Anatomy/Models-of-human-anatomy
Pinned commit: 6ffffec1d9b17ed3db355903bbd762582cb2328e
License: Creative Commons Attribution–ShareAlike 4.0 International.
https://creativecommons.org/licenses/by-sa/4.0/
Original BodyParts3D notice: CC-BY-SA 2.1 Japan. See UPSTREAM-LICENSE.txt.
Modifications: skeletal and thorax subset extraction, removal of atlas label objects, polygon reduction on large meshes, smooth normals and glTF export. Display materials and illustrative motion applied at runtime.
Adapted anatomical model data are shared under CC BY-SA 4.0. Retain attribution and share adaptations under the same license. No endorsement is implied.
Reproducible source: frontend/scripts/assets/export-sports-atlas.py
The muscle, energy and neural pathways are original teaching schematics and do not constitute measured physiological data.

arm-muscles-atlas-v1.glb: right biceps (long and short heads), triceps
(three heads), brachialis, scapula, humerus, radius and ulna, from the same
pinned Z-Anatomy atlas revision. CC BY-SA 4.0. Adapted by selecting a subset,
reducing dense meshes and converting to glTF; illustrative materials applied
in the viewer. Geometry is a resting anatomical model, not a simulated elbow.
Reproduction script: frontend/scripts/assets/export-muscle-atlas.py.
Checksums and modification details: arm-muscles-manifest.json.

energy-atlas-v1.glb, reflex-atlas-v1.glb and circulation-atlas-v1.glb:
Z-Anatomy / BodyParts3D subsets, CC BY-SA 4.0, same upstream revision and
credits above. Adaptations: named tissue subsets, curve-to-surface conversion
for nerves and blood vessels, polygon reduction, smooth normals and glTF
export. Illustrative viewer colours do not change anatomical geometry.
Exporter: frontend/scripts/assets/export-sports-systems.py.
Checksums, sources, modifications and included structures: systems-manifest.json.