The duration of this period is 16 weeks, according to the Internet publication for girls and women from 14 to 35 years old Pannochka. Net At this time, the senses of the child are improved. The baby distinguishes between smells, taste, and also has visual perception. The fetus is able to hear not only the internal sounds, for example the pulsation of the umbilical cord, the heartbeat of the mother and the peristalsis of her intestines, but also sounds coming from outside. The cerebral cortex also enters the final stage of development. The seven-month-old fetus can feel and respond to it almost as well as the full-term.

All internal organs are practically formed and function. Fatty tissue is folded, but it is still poorly developed, so the premature baby has wrinkled skin, and the nails are underdeveloped.

At the end of the 7th month (28 weeks), the fetus has a length of 35 cm and a mass of 1000-1200 g. During this period the fetus is very mobile, the motor activity is cyclic: the periods of the fetal movement are replaced by complete rest. During the day, the baby moves for 40 minutes, then comes a 20-minute sleep. A healthy child is most active from 9 pm to 1 am. At the 8th month of pregnancy, the greatest number of movements is observed - 600, then their number gradually decreases.

The child during this period significantly increases his head, in the eighth month it reaches 60% of the size of the head of an adult. The brain also increases in size. It is equal to 0.

25 of the brain mass of an adult human, while other organs increase only to 0.05 parts from "adult" sizes. Actively accumulates subcutaneous fat, the skin of the child is smoothed, the original grease.

At the 9th month the baby's lungs are almost ready for work. Surfactant, a specific substance, helps the lungs alveoli to straighten and breathe, and also prevents their loss. The maturity of the lungs is determined by the presence of surfactant.

Health. Sumy. Ua.

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