Anatomio lower-limb bones and selected muscles study

Original geometry: BodyParts3D, copyright The Database Center for Life Science.
License: Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
Source: https://dbarchive.biosciencedbc.jp/en/bodyparts3d/
Input: IS-A BodyParts3D 4.0 OBJ 99 archive.

104 meshes: per side, 31 bones, four quadriceps meshes, four posterior thigh
parts, two gastrocnemius heads, soleus, four anterior, two lateral and four deep posterior lower-leg muscles.
Not a complete muscle layer. Fibularis tertius is variable between individuals.
Achilles tendon is not separately selectable. Plantaris is not yet included.
Coordinates and triangulated faces are preserved. A single shared display
centering/scale and axis rotation are applied; no per-side movement or new
mirroring. Smooth normals, lighting and illustrative colors are added.
Source-index mappings, mesh hashes and output checksum: provenance.json.

This is an incomplete educational reconstruction. Other lower-limb muscles,
cartilage, separate ligaments, vessels, nerves, axial skeleton, head and neck are absent. The hip bones do not constitute
a complete pelvis. Anatomical review is pending. No movement simulation.
Viewer/assembly: Anatomio, https://anatomio.org