Hand bone growth. X-ray of bone growth of the human hand at different ages (left to right): 1 year old,3 years old,13 years old,20 years old. Bones are pink/blue. The infant and child hands reveal wide spaces of cartilage between each finger bone,at each joint,where bone growth and ossification (bone formation) will occur. Wrist bones appear absent in the 1 year old as they are made of cartilage; wrist bone formation has begun in the 3 year old. By 13 years ossification has occurred widely: all wrist bones are seen,and the spaces between finger joints have narrowed. In the 20 year old hand,all bone joints have closed | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3543 px × 2731 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |