. Radiography, X-ray therapeutics and radium therapy . or-:^1App«r5 ; EUnites !8-20!>t jj^j Appears 4-5<V, 18 ZOyr & Pig. 120.—Diagram Bhowing ossification of the bones of the hand and thewrist-joint with the times of union ofepiphyses with 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 no


. Radiography, X-ray therapeutics and radium therapy . or-:^1App«r5 ; EUnites !8-20!>t jj^j Appears 4-5<V, 18 ZOyr & Pig. 120.—Diagram Bhowing ossification of the bones of the hand and thewrist-joint with the times of union ofepiphyses with 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


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