As the fruit grows

During so-called prepregnancy, i.e. within seven-eight days after fertilisation and to an attachment of the impregnated cage to a uterus wall, the cage continuously shares and changes, but does not become more than was right at the beginning. It looks like a mulberry berry and is called морула. Fast growth of a cage begins after its attachment to a uterus mucous membrane. Only then there comes the pregnancy period. The terms characterising this period change also.
In эмбриональном the period all bodies develop.
Cage quickly increasing in size is called as an embryo, and time from the moment of a cage attachment to a wall of a uterus till the end of the third month of pregnancy is called эмбриональным as the period. The embryo receives all nutrients necessary for the development from blood of mother and starts to grow quickly. Speed of its growth is unique: for first four weeks after a cage attachment in a uterus it increases the weight in 20 000 times, for the second month of pregnancy — in 50 times and for the third month — almost in 10 times.
Later 10 weeks after fertilisation, i.e. 12 weeks after last менструации, a fruit reach length of 7 sm and has all vital bodies. Outwardly it is already similar to the person.
As the fruit grows
Since this moment the embryo is called as a fruit. In the end of the third month of pregnancy it is possible to distinguish already clearly, the boy it or the girl. Parities between age of a fruit, its length and weight are resulted in the table.
The fruit increases not so quickly as an embryo, but nevertheless it is very considerable. For the fourth month of pregnancy its weight increases seven times, for the fifth — three times, for the sixth — doubles. The fruit not only quickly grows, but also constantly changes shape. He resembles the person more and more and even has independently an effect. It is necessary to tell about especially important changes more in detail.
In the end of the fourth month the fruit body is covered by gentle hairs. Movements which it makes since third month, by fifth month become so vigorous, that mother feels them, and the doctor designates them as movements of the child. The liver of a fruit and its other glands responsible for пищева­рение, start to allocate secrets. In intestines accumulates кал, so называе­мый меконий. On fingers nails grow. Already on the seventh month of pregnancy on palms and tips of fingers there are lines which further all will be more appreciable. They are called папиллярными as lines and do not vary throughout all life. By the end of the seventh month at a fruit all vital functions are developed in enough mature degree. The child who prematurely is born, at careful leaving and the strict medical control has every chance to survive. However by this time it weighs hardly more 1000 By the end of the eighth month at prematurely born child chances to survive, certainly, increase. And, the baby who was born in time, i.e. later 40 weeks after conception has naturally, best chances.