3D visualization based on scanned human data of the upper skeletal system. The posterior view reveals the vertebral column from which the rib cage is anchored. The scapulae articulate with the ribcage. Brilliantly engineered, the living skeleton not only bears the body's load and enables movement but also stores minerals, protects internal organs, and, in its spongy interiors, houses the main blood works. This flexible armature pivots along a central axis (the spine), which bends and turns and is attached to rings of bones (girdles) that connect it to the limbs. Arms and legs share the same fundamental structure - one long bone, two shorter ones, and a claw-like assembly of yet smaller ones, all hinged by freely movable joints. |