. A system of midwifery, including the diseases of pregnancy and the puerperal state. ively forwards and upwardsover the distended perineum. Fig. 120 shows the head in this positionimmediately prior to the final act which terminates the second stage oflabor. Second Position of the Breech.—In this, the position is also dorso-anterior; but, instead of occupying the left as in the position above de-scribed, the pelvis descends in the right oblique diameter. It is there-fore the right ischial tuberosity which presents, and the right buttockwhich descends in advance as far as the pubic arch, being
. A system of midwifery, including the diseases of pregnancy and the puerperal state. ively forwards and upwardsover the distended perineum. Fig. 120 shows the head in this positionimmediately prior to the final act which terminates the second stage oflabor. Second Position of the Breech.—In this, the position is also dorso-anterior; but, instead of occupying the left as in the position above de-scribed, the pelvis descends in the right oblique diameter. It is there-fore the right ischial tuberosity which presents, and the right buttockwhich descends in advance as far as the pubic arch, being directed to-wards it by the anterior inclined plane on the left side of the left hip sweeps over the perineum, and the shoulders descendingin the right, and the head in the left oblique diameters, are successivelyexpelled by a mechanism which is in all respects identical with that XIX.] SECOND POSITION OF THE BREECH. 331 which obtains in the first position, only in the contrary direction as re-gards the various rotatory and other movements. At first it seems Fig. Arm displaced upwards. strange that this should be less frequent than the first position, andthat nature should prefer the left oblique diameter in breech cases to Fig. 120.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectobstetrics, bookyear1
