. The American journal of roentgenology, radium therapy and nuclear medicine . aphysis is entirely coveredby the ossified upper epiphysis. If originallythere were separate epiphyses for the headand greater tuberosity the two have certainlyunited at this time. Eight Years (Fig. 9). There is closer ap-proximation between the shaft and the epi-physis. Ossification from the shaft seems toproceed up into the epiphysis. The coracoidprocess is larger than in previous years. Nine Years and Ten Months (Fig. 10).The diaphysis seems to be separated fromthe epiphysis for the head, by a triangularor wedge-
. The American journal of roentgenology, radium therapy and nuclear medicine . aphysis is entirely coveredby the ossified upper epiphysis. If originallythere were separate epiphyses for the headand greater tuberosity the two have certainlyunited at this time. Eight Years (Fig. 9). There is closer ap-proximation between the shaft and the epi-physis. Ossification from the shaft seems toproceed up into the epiphysis. The coracoidprocess is larger than in previous years. Nine Years and Ten Months (Fig. 10).The diaphysis seems to be separated fromthe epiphysis for the head, by a triangularor wedge-shaped shadow. The impressiongiven is that this wedge is separate and dis-tinct from the shaft and also from the head. This is not the true state of affairs hutthe appearance is rather an optical illusiondue to the position of the arm zvhen thepicture was taken. The lower part of the head represents theepiphyseal line and what afterwards be-comes the anatomic neck. The wedge-shaped shadow represents thegreater tuberosity. Observations on the Normally Developing Shoulder 7^7. Fig. 13. Normal shoulder. Age: 14 years, 6 months. Fig. 14. Xormal shoulder. Aye : 14 years, 8 months.
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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1900, bookyear1906
