Expectation of the birth of the child – the concerning period in the woman's life. For determination of obstetric term of pregnancy, obtaining authentic data on development of a fruit, sex determination of the child, possible physiological features of the kid conduct ultrasound examination (ultrasonography) of the pregnant woman.
Instruction
1. Thanks to ultrasonography it is possible to receive data on how the child during any given period of pregnancy looks. The first ultrasonography is conducted from 9 to 12 week at production of the woman in clinic for women on account on pregnancy. In 12 weeks the weight of the kid is about 90 g. Internals are created, hormones of a thyroid gland and hypophysis begin to be produced, a liver to produce bile, kidneys work, rare reductions of intestines are possible. At blood of the child there are erythrocytes, leukocytes. Development of nervous system continues. There is a strengthening of muscles, maturing of bones. On hands and legs fingers with a marigold begin to be formed. The child can move legs, swallow, turn and turn over. Emergence of a down on the place of future formation of eyebrows and eyelashes on the head is characteristic.
2. On ultrasonography in 16 weeks of pregnancy growth of the child will be about 20 cm, and the weight of 150 g. The kid holds a head, periodically turns. Glotatelny and sosatelny reflexes are developed. The child can grimace, somersault, undertake hands everything that will get. Kidneys and intestines work that demonstrates ability of the kid to urinate and emit gases. Genitals are created thanks to what sex determination of future kid is possible. Ears and eyes gradually take the places. The child distinctly distinguishes voices, beginning to get used to them. Legs continue to be thickened and extended. Skin gets a pink shade. In 20 weeks the weight of a fruit is 280-300 g, growth – 25-26 cm. Integuments gain the expressed red color and become covered by pushkovy hair, protective lubricant. On the 24th week of pregnancy length of the kid - about 33 cm, weight - about 530 g. There is a completion of formation of a respiratory system. Individual traits of a child's face were defined. The nose, lips are created. Eyes are located ahead. A few centuries ago, eyelashes, over eyes – eyebrows appeared. Ears took the put place.
3. On the 30th week growth of a fruit will be 36-38 cm, weight about 1.4 kg. The child trains the created lungs, filling them with amniotic liquid and pushing out back. At water ingress in a throat, the kid begins to hiccup. The child whose growth is 42-44 cm weight about 2.3 kg corresponds to the 34th week of pregnancy. Skin of a fruit gains uniform pink color. There is a disappearance of pushkovy hair, the layer of first-born lubricant decreases, head hair get denser. Nails on fingers of hands and legs become long that can lead to damage of integuments of the child in utero. On the 39th week height of a fruit is 49-51 cm, and weight is about 3.3 kg. Head hair can grow up to 204 cm. The look of the kid is focused on 20-30 cm. The spinal cord, glial tissue, a part of a facial nerve are created. The child is completely ready to independent extra uterine life.