孕期B超指标对照表及说明,胎位缩写（Prenatal ultrasound index table and that fetal abbreviation）.docVIP

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孕期B超指标对照表及说明,胎位缩写（Prenatal ultrasound index table and that fetal abbreviation）.doc

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孕期B超指标对照表及说明,胎位缩写（Prenatal ultrasound index table and that fetal abbreviation）

孕期B超指标对照表及说明,胎位缩写（Prenatal ultrasound index table and that fetal abbreviation） Theme: pregnancy ultrasound index table and that position abbreviation haw slice reprint pouch Reference material： To determine the size of fetal development during pregnancy by ultrasound method is more valuable in pregnant women, do B when will see some numerical examination reports, these values is to tell the size of your babys development. Fetal development during early pregnancy and B-mode ultrasonography Pregnancy is a complex process in which the egg enters the uterus after fertilization, and the embryo and appendages grow rapidly and mature until each week of gestation varies. What does your baby look like in the early weeks of pregnancy? The following article will tell you in detail. 4 weeks: the fetus is only 0.2 centimeters. When the fertilized egg has just completed its implantation, the amniotic cavity is formed and the volume is small. Ultrasound also fails to see signs of pregnancy. 5 weeks: the fetus grows to 0.4 centimeters, enters the embryonic phase, the amnion cavity expands, primitive cardiovascular appearance, may have the pulsation. B ultrasound can see small fetal sac, fetal sac about 1/4 of the uterine cavity, or fetal bud. 6 weeks: fetal length to 0.85 cm, fetal head, brain foam, frontal organs, respiratory, digestive, nervous and other organ differentiation, B-mode ultrasound sac clearly visible, and fetal bud and fetal heart beat. 7 weeks: the fetus is 1.33 cm long, the embryo has a human embryo, the body has been fully differentiated, limb separation, the system further development. B ultrasound clearly shows the fetal bud and fetal heart beat, and the fetal sac is about L / 3 of the uterine cavity. 8 weeks: the fetus is 1.66 centimeters long and the shape of the fetus has been fixed. The fetal head, body and limbs can be separated. The head of the fetus is larger than the trunk. Ultrasound visible gestational sac accounted for about 1 / 2 intrauterine fetal