A System of midwifery : including the diseases of pregnancy and the puerperal state . e of the contact which permits of an interchange of materialbetween the two ? In attempting to answer this question, and to describe the minutestructure of the placenta, it must be admitted that there are still manyjoints in regard to which differences of opinion exist, and some diffi-culties which have yet to be explained. To enter upon a full consid-eration of these would ill accord with the expressed object of this work,but a general view of the case, as adopted by the best authorities, mayhere be briefly
A System of midwifery : including the diseases of pregnancy and the puerperal state . e of the contact which permits of an interchange of materialbetween the two ? In attempting to answer this question, and to describe the minutestructure of the placenta, it must be admitted that there are still manyjoints in regard to which differences of opinion exist, and some diffi-culties which have yet to be explained. To enter upon a full consid-eration of these would ill accord with the expressed object of this work,but a general view of the case, as adopted by the best authorities, mayhere be briefly epitomized. The vessels which are seen to pass throughthe utero-placental tissues are, with an important exception to be noticedafterwards, of two kinds, arteries and veins. The former, the b- curl-ing arteries of the uterus, as they are generally called, are of mod-erate Bize : they do not anastomose much, nor are their ramificationsvery numerous, and they retain, within the placenta, in a certain de-gree, their spiral disposition. The veins are somewhat larger, straight Fro.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectobstetrics, bookyear1
