Anatomy of fetal development in the first trimester
The first trimester of pregnancy begins from the first hours after conception. Development of the fetus is as follows. During the first day of pregnancy, the fertilized egg will divide, at first by 2 cells, then by 4. After four days, a whole complex of 32 cells - morulu - is formed. If to say easier, morulu is a becoming of the future child. Morula tries to reach the uterus and on the fallopian tube advances after conception throughout the first week. The future baby receives from the stocks of the mother's egg all the vital substances, and all this time, as it were, is offline.
Only on the seventh day the future baby is implanted into the wall of the uterus in the mother's abdomen and fixed there. Two bubbles form the inner cells of the fetal egg. After a while one of them forms an amniotic cavity with amniotic fluid. At the same time, the future placenta appears on the fetus of the fetus, with which it will feed and receive antibodies to fight infections for all 39 weeks.
At an early stage of pregnancy, only a mother can call a small baby a baby. For doctors, until the 8th week, this little miracle will be just a germ (embryo). This is because at the age of 2-3 weeks the future little man looks like a small scribbler and does not exceed the size of 2, 5 mm.
Six weeks after fertilization, the baby's future develops the initial elements of the digestive system, brain and central nervous system. There are 4 cavities - the future eyes and ears of the baby, and the tail, which soon itself will fall away. Between the body and the head is formed the future neck. The size of the future baby reminds "beans".
By 8 weeks the anatomy of the child is complicated. The embryo grows to 8 mm, there are rudiments of handles, legs, head. Official medicine, from this time, recognizes it as a fruit. The brain impulses begin to be fixed already at the crumb. Finally, knobs and legs are formed, the face acquires common features: mouth, nose, nostrils. The future baby begins to actively move the handles and legs.
At week 9, the kidneys begin to work, gradually removing unnecessary fetuses from the blood. In a true athlete the baby turns into 12-13 weeks. He opens and closes his mouth, bends and unbends his legs and arms, squeezes and unclenches his fists. By week 15 the baby grows to 10 mm. His tiny heart beats very fast, and all the major organs are already formed. Already, if possible, you can find out the sex of your baby on ultrasound, hear and see the crumbs. Not much time left before the baby's birth.
Tips for the healthy development of the fetus
In the first trimester of pregnancy in a woman's body, much begins to change. And it is accompanied not only by pleasant moments. Many women are persecuted by toxicosis with a feeling of weakness, nausea. Especially in early pregnancy. There is disgust from many smells of food. You should rest more, get up, do not make sudden movements, so as not to cause an attack of nausea. At this time breakfast in bed is not a luxury, but a necessity. Cookies with bran, a small cracker, a cup of yogurt or yogurt, an apple - this is what you need in the morning. The work of the intestine because of the hormonal shift that occurs, slows down, which often leads to constipation. Try to make your diet products that contain large amounts of dietary fiber, exclude snacks in the dry. Ideal for vegetables, fruits, bran. Try to eat a little and often. Walking will help to improve the digestive system.
In the state of pregnancy, the behavior of the future mother also changes. This is manifested in the fact that the mood often changes from states of complete happiness to unexpected depressions and irritation. All these changes are associated with chemical changes already in the first trimester of pregnancy. The hormone progesterone is produced throughout the pregnancy in large quantities and acts on the nervous system as a depressant. The slightest trifle can now take you out of balance. You should walk more often outdoors, let your body rest. You should know that the child already feels the same as you. You need to create an atmosphere of calmness, so that no troubles will not catch you and your baby unawares. Your future child is growing by leaps and bounds, and literally by the hour.
Knowing about the development of the fetus in the first trimester of pregnancy, people will be more careful to treat the fetus from the very first days of its existence.