揭秘!怀孕后子宫如何变化（Secret how does the womb change after conception）.docVIP

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揭秘!怀孕后子宫如何变化（Secret how does the womb change after conception）.doc

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揭秘!怀孕后子宫如何变化（Secret how does the womb change after conception）

揭秘!怀孕后子宫如何变化（Secret how does the womb change after conception） There are 3 main types of uterine function in pregnancy: for implantation of the fertilized egg, to accommodate the developing fetus and childbirth in the mature infants. In order to complete the second function, the uterus must be enlarged and the normal contraction tendency will be suppressed when the uterus holds the fetus. The uterus recovered rapidly after delivery! Do you want to know the whole process from pregnancy to delivery? See below, uncover the mystery of pregnancy. Uterus enlargement In order to accommodate the growing fetus, placenta and the surrounding amniotic fluid, the internal volume of the uterus must be increased by about 1000 times. In the first half of pregnancy, the weight of the uterus increases rapidly due to thickening of the muscle fiber. Initially, in the female hormone stimulation, the uterus every muscle cells can be increased by 50 times. By the middle of pregnancy, the growth rate slows down, but then the volume of the uterus increases rapidly as the muscle fibers stretch and become thinner. All these increased, resulting in the weight of the uterus at last increased by about 20 times, from the original 40 grams to 800 grams. The uterus is enlarged until it is 16 weeks pregnant, when the uterus begins to rise from the pelvis. By the 36 week, the top of the uterus (fundus) has risen below the breastbone. When the fetal head joined, the uterus fell again. The growing uterus In pregnancy, the size of the uterus increases by about 1000 times, when it increases, the other organs squeeze, resulting in such as frequent urination, heartburn, asthma and constipation and so on. Contraction of uterus One of the normal function of the uterine muscle, is throughout pregnancy has been weak and short of contraction, this contraction you may perceive or notice, as long as you put your hand on the abdomen, can touch the muscles taut and hard, this slight, painless movement called Braque