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Pregnant fetus head wrong


When the bent head begins to straighten prematurely (at the beginning of childbirth or even during pregnancy) and in such a state to move along the birth canal, talk about the extensor presentation of the voice. There are 3 degrees of it. 1 st., Pre-head presentation - the head passes through the birth canal with the area of ​​the large fontanel. II century, frontal presentation - the fetus passes through the birth canal with a forehead lowered to the rest of the head. IIl st., Facial presentation - the head is unbent so sharply that the chin of the fruit becomes the leading point. Biomechanism of childbirth at all degrees is similar, they are characterized by a protracted character and a significantly increased traumatism of the mother and fetus.