Always interests future mom who looks forward to the birth of the kid as her child during pregnancy changes. The modern medicine knows practically everything about conception and development of a fruit in a uterus. Thanks to it it is possible to learn what happens in every month of pregnancy.
Pregnancy develops 40 calendar weeks or 9 months for which by genetically programmed code in several stages bodies and the systems of the child are formed.
1-2 month
Morula, she is the impregnated ovum, shares and goes to a uterus cavity. Having attached to its walls, the placenta begins to be formed of blood vessels and fibers, and cages become an umbilical cord in a rudiment and soft fabrics. At a germ a number of systems is put: blood, respiratory, digestive, secretory and one of very first – nervous (from a nervous tube).
Bodies are formed: throat and tracheas, lungs, liver and kidneys, stomach and pancreas, intestines. For 21 days the heart for the first time begins to fight. By the end of the first month soft and wide layer in a cover will become the head, and on a trunk folds will appear. Inside the chord from which the backbone will develop is formed. Already there are muscles and similarity of extremities. On the head there are hollows - it is eyes.
To the middle of the second month departments of a brain and a ventricle with cameras and auricles in heart begin to be differentiated. Gametes function. Through an umbilical cord between a uterus and a placenta the blood circulation returned to normal, the embryo receives food, can breathe. Features are shown: lips and eyelids which he moves under the influence of irritants and also a fold of a nose and ears. On extremities - accrete fingers with elastic nails. By the beginning of the third month the body becomes straight, the embryo became a fruit.
3-5 month
There are bones, they acquire cartilages and muscles, the child can squeeze fingers on hands in fists. The chin is still pressed to a breast, the neck only began to be extended. All systems change, continuing the formation: intestines keep within loops, are for the first time reduced, adrenal glands work, in blood erythrocytes and leukocytes are formed. Heart does 150-170 beats per minute. The nervous terminations were created. The fruit already moves, but mother of it does not feel yet. By the end of the fourth month there are accurate features, head hair and milk teeth appear. Genitals developed: ovaries in a small basin – at girls, a prostate – at boys. It is time to make ultrasonography. It is possible to tell that the fruit was already created, it will be farther in a uterus, generally grow. On the fifth month his body in length makes 15-20 cm, it accepted vertical position, actively moves, sleeps and is awake in a certain mode. The integument and fat cellulose are formed. Heart beat is listened by means of a stethoscope. Basic reflexes and a mimicry are shown.
6-9 month
The fruit spends in a dream much time, to it becomes close therefore it bends extremities. The child for the first time begins to catch smells, to hear and see, and his lungs took the usual form. The kid will be able independently to breathe if he is born ahead of schedule. The formation of genitals is completed, there are female and male genitals. The metabolism got better. Preparation for the birth forces a fruit to be developed by the head down, to cross hands on a breast, to press to it knees and to emit hormone which influences development of milk mother's glands.