한국인 태아 신장에 관한 연구 제1편 형태학적 관찰

Abstract

Author observed morphologically and stastically the kidneys of 542 (0288. l? 254) Korean Fetuses and g otthe conclusion as follows: 1. Among the three kinds of the linear measurements: kidney length , kidney width and kidney thickness, the kidney length is the largest and kidney thickness is the smallest. The average means of three measurements increased gradually with the constant ratios as the fetal age proceeded. 2. Until the 5th month of fetal age kidney weight and kidney volume increased slowly. from the 5th month to 7th month rather rapidly and after that more rapidly. 3. The index of kidney length to body length increased very slowly as the fetal age proceeded , and this indicate that the kidney length developed a little more rapidly than the body length. 4. The indices of width to length and thickness to length of the kidney were almost constant through the entire fetal period. 5. The index of kidney weight to body weight increased very slowly as the fetal age proceeded , and this fact indicate that the kidney weight developed more rapidly than the body weight. 6. The boundaries of the kidney lobes were distinct during the 6th- 9th fetal months and rather indistinct during the 4th , 5th and 10th fetal months. The number of the lobes of each kidney was 16~ 17 in average. 7. There was no sexual difference. 8. The difference between the right and left sides was not so conspicuous but in general length of left kidney , width of right kidney , thickness of left kidney and weight of left kidney were greater than that of the opposite side. 9. Concering the racial differences, the size of the Korean fetus kidney is quite same as the Japanese but smaller than the European.