12.07.2015 Views

NORMAL LABOUR

NORMAL LABOUR

NORMAL LABOUR

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(6) Restitution:After delivery, the head rotates 1/8 of a circle in the oppositedirection of internal rotation to undo the twist produced by it.(7) External rotation:The shoulders enter the pelvis in the opposite obliquediameter to that previously passed by the head. When theanterior shoulder meets the pelvic floor it rotates anteriorly1/8 of a circle. This movement is transmitted to the head so itrotates 1/8 of a circle in the same direction of restitution.

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