Saturday, June 11, 2011

Cervical Dilatation


Compared with the corpus uteri, lower uterine segment and cervix is an area of resistance is smaller. Therefore, during the contraction, these structures have stretching, which is in the process of cervical experiencing centrifugal pull. When the contractions of the uterus causes pressure on the amniotic membrane, amniotic bag hydrostatic pressure will widen the cervical canal. When the amniotic membranes have ruptured, the pressure at the bottom of the fetus against the cervix and lower uterine segment as well as effective. Premature rupture of amniotic membranes do not reduce the dilation of the cervix during the bottom of the fetuses are in a position to continue the pressure against the cervix and lower uterine segment.

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