A treatise on the science and practice of midwifery . deliveryin certain cases in which the usualdata for calculation are absent, as, forexample, when the patient has con-ceived during lactation. The Uterus Sinks before —For about a week or more beforelabor the uterus generally sinks some-what into the pelvic cavity, in con-sequence of the relaxation of the softparts which precedes delivery, andthe patient now feels herself smallerand lighter than before. This changeis familiar to all child-bearing women,to whom it is known as the lighten-ing before labor. The Direction of the Uterus
A treatise on the science and practice of midwifery . deliveryin certain cases in which the usualdata for calculation are absent, as, forexample, when the patient has con-ceived during lactation. The Uterus Sinks before —For about a week or more beforelabor the uterus generally sinks some-what into the pelvic cavity, in con-sequence of the relaxation of the softparts which precedes delivery, andthe patient now feels herself smallerand lighter than before. This changeis familiar to all child-bearing women,to whom it is known as the lighten-ing before labor. The Direction of the Uterus.—Whilethe uterus remains in the pelvis itslongitudinal axis varies in direction, much in the same way as thatof the non-pregnant uterus, sometimes being more or less vertical,at others in a state of ante version or partial retroversion. Thesevariations are probably dependent on the distension or emptiness ofthe bladder, as its state must necessarily affect the position of themovable organ poised behind it. After the uterus has risen into the. Size of Uterus at various Periods ofPregnancy. PREGNANCY. 12o abdomen its tendency is to project forwards against the abdominalwall, which forms its chief support in front. In the erect positionthe long axis of the uterine tumor corresponds with the axis of thepelvic brim, forming an angle of about 30° with the horizon. In thesemi-recumbent position, on the other hand, as Duncan1 has pointedout, its direction becomes much more nearly vertical. In women whohave borne many children, the abdominal parietes no longer affordan efficient support, and the uterus is displaced anteriorly, the fundusin extreme cases even hanging downwards. Lateral Obliquity of the Uterus.—In addition to this anterior ob-liquity, on account of the projection of the spinal column, the uterusis very generally also displaced laterally, and sometimes to a verymarked degree, so that it may be felt entirely in one flank, insteadof in the centre of the abdomen. In a
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Keywords: ., bookcentury1800, bookdecade1870, bookidtre, booksubjectobstetrics
