Mini human skeleton model on metal base

1. Skull: Serrated suture lines marked out. Calvarium is transversely cut to show the interior structures of the skull. Mandible is movable

2. Vertebral column: Composed of 7 cervical vertebrae and 5 lumbar vertebrae, a piece of sacrum, a piece of coccyx and 23 intervertebral discs. The vertical column shows four curvatures, i.e., cervical and lumbar curvatures, being convex forward, thoracic and sacral curvature, being convex backward

3. Bony thorax: Composed of 24 ribs, a piece of costal cartilage, and a piece of sternum. It includes 7 pairs (1-7) of true ribs, 3 pairs (8-10) of false ribs and 2 pairs (11-12) of floating ribs

4. Bony pelvis: Composed of sacrum, coccyx and two pieces of hip bones

5. Bones of upper extremities: Composed of 64 pieces of separable bones. The pectoral girdle (scapula and clavicle) are fixed on the bony thorax. The main joints (shoulder, elbow and wrist) are movable

6. Bones of lower extremities: Composed of 62 pieces of separable bones. Rhe pelvic girdle (hip bone) is fixed to construct the bony pelvis. The remaining parts of the lower extremities can be take down. The main joints (hip, knee and ankle) are movable.