skeleton 1:  1 skull,  
2 clavicle,  3 scapula,  
4 sternum,  5 humerus,  
6 rib,  7 pelvis,  8 radius,  9 ulna,  10 carpus,  
11 metacarpal bones,  
12 phalanges (fingers),  13 femur,  14 patella,  
15 tibia,  16 fibula,  
17 tarsus,  18 metatarsal bones,  19 phalanges (toes),  20 spinal column