特別掲載人胎兒生理の研究 : 第1編人胎兒羊水嚥下運動の「X-線」的研究

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Part 1 X=Ray Research of the Swallowinz of Amniotic Fluid by Human Fetuses. The following conclusions were obtained after injecting "Sugiuron" and "Moljodol" into the amniotic cavity of women at the 5.-8. months of pregnancy and examining fetuses and new-born babies by X-ray. 1) Fetuses swallow amniotic fluid physiologically and actively. 2) A 5-month-old fetus, which is 20 cm long, swallows amniotic fluid. 3) The "Sugiuron" injected into the amniotic cavity reaches the stomach of the fetus after 10 minutes, goes into the small intestine after 3-4 hours, the rectum after 24-25 hours. 4) Fetuses absorb water contained in amniotic fluid through the mucous membrane of intestinal canal. 5) In one case the "Sugiuron" was found streaming into the lungs of the fetus. 6) Amniotic fluid circulates in amniotic cavity. 7) This procedure can also be used for diagnosing the position of the attachment of the placenta to the uterine wall. 8) No undesirable effect either on the mother or the fetus, such as acceleration of labor-pains, toxemia of pregnancy etc., was noted in this experiment, so far as the "Sugiuron" was concerned. 9) As for the "Moljodol" it cannot be considered utterly harmless to the fetus. Part. 2 The Absorbing Faculty of the Mucous Membrane of the Intestinal Canal of Human Fetuses. In histological research of new-born babies from the women at the 6. 〜7. months of pregnancy, into the amniotic cavity of whom 1% solution of "Trypanblau" had been injected, the following conclusions were obtained. 1) A 6-7-month-old fetus absorbs the solution of "Trypanblau" injected into the amniotic cavity through epithelia of mucous membrane of the small intestine. 2) The epithelia of mucous membrane of the stomach of 6-7-month-old fetus have, though slightly, the action of phagocytosis. 3) A fetus in the later period of pregnancy absorbs the water contained in amniotic fluid and some solutes through the mucous membrane of the intestinal canal, especially of the small intestine. 4) Amniotic fluid does not permeate through the skin into a fetus's body in the later period of pregnancy. 5) The injection of the solution of "Trypanblau" into the amniotic cavity exerts no bad effect on both the mother and the fetus. Part 3 The Intrauterine Respiratory Movements of Human Fetuses. In histological research of new-born babies from the women at the 6. 〜7. months of pregnancy, into the amniotic cavity of whom 1% solution of "Trypanblau" had been injected, the following conclusions were obtained. 1) The solution of "Trypanblau" injected into the amniotic cavity of women at the 6. 〜7. months of pregnancy streams into bronchioles and alveoles through the respiratorv tract. 2) A fetus in the later period of pregnancy absorbs the water in the amniotic fluid and some solutes both through the epithelia of bronchioles and those of alveolps. 3) The streaming of amniotic fluid into the lungs can be considered as an important preparatory work for dilating alveoles for the first breath after delivery. 4) The flow of the amniotic fluid into the lung of a fetus may be normal, it may be helped by its swallowing movements and the movement of thorax or respiratory movements.
社団法人日本産科婦人科学会の論文
1951-08-01

特別掲載人胎兒生理の研究 : 第1編人胎兒羊水嚥下運動の「X-線」的研究

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特別掲載 人胎兒生理の研究 : 第1編 人胎兒羊水嚥下運動の「X-線」的研究

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特別掲載人胎兒生理の研究 : 第1編人胎兒羊水嚥下運動の「X-線」的研究