- 3D Models
- Musculoskeletal System
- Bone Macro Structure
Bone Macro Structure
Bone Macro Structure 3D Model with Compact and Spongy Regions
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A 3D model showing the gross structure of a long bone. The cortical shell of compact bone surrounds the medullary cavity. Spongy (trabecular) bone fills the metaphysis and epiphysis. The periosteum covers the outer surface, and endosteum lines the inner surfaces. Articular cartilage caps the ends. Bone macrostructure optimizes strength-to-weight ratio. The compact cortex resists bending and torsion, while the trabecular lattice distributes loads at the joints. The marrow cavity houses hematopoietic (red) and fatty (yellow) marrow. Bone macrostructure is taught in orthopedics and anatomy courses. Medical advisory board reviewed. Clean geometry for rendering, real-time, and 3D printing.