. Radiography, X-ray therapeutics and radium therapy . Fig. 121.—Hand of a child over five years old. Shows development of bones Of lower ends ofradius and ulna, carpal bones, metacarpals, andphalanges. The epiphysis for lower end of radiuswell developed. The ulnar epiphysis has not yetappeared. The os magnum and unciform, semi-lunar and cuneiform boues are also shown. Thepisiform is not shown. Note also the centre fortlie proximal end of the metacarpal bone of thethumb. The epiphyses of the four inner metacarpal bones are seen at the distalends of the shafts, but in the phalanges and in the m
. Radiography, X-ray therapeutics and radium therapy . Fig. 121.—Hand of a child over five years old. Shows development of bones Of lower ends ofradius and ulna, carpal bones, metacarpals, andphalanges. The epiphysis for lower end of radiuswell developed. The ulnar epiphysis has not yetappeared. The os magnum and unciform, semi-lunar and cuneiform boues are also shown. Thepisiform is not shown. Note also the centre fortlie proximal end of the metacarpal bone of thethumb. The epiphyses of the four inner metacarpal bones are seen at the distalends of the shafts, but in the phalanges and in the metacarpal bone of thethumb the epiphyses are found at the proximal ends of the respectivebones. 150 RADIOGRAPHY. Fig. 122.—Shows stage of ossification in a youngadult under twenty years. The Elbow-joint.—The lower epiphysis of the humerus at the age offive or six years merely shows the centre for the capitulum as a small roundmass. In an antero-posterior picture of the joint it is seen as a wedge- with ~*.fbody at IB-yA^
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