7 weeks pregnant

The embryo at 7 Weeks of Pregnancy. She is five weeks old since fertilization occurred. We remember that this is so because when counting the weeks of pregnancy, one starts from the date of the last menstruation 40 weeks, but the fertilization of the ovum occurs two weeks later, so we speak of gestation of 38 weeks. Five weeks after conception, the wall of the uterus has softened to allow the embryo to implant strongly. Another internal change is the enlargement of the cervical mucosa or mucous plug, which ensures that the cervix remains closed and isolated from the outside world throughout the pregnancy.

Summary

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  • 1 Period of Organogenesis
  • 2 Training
  • 3 Neurogenesis
  • 4 See Also
  • 5 Sources

Organogenesis Period

In this period, from the different layers of the embryo, the organs of the body are being formed. Exposure of the embryo to teratogens; agents that can induce or increase the possibility of congenital malformations during these weeks (4 to 8), constitutes the most critical period of its development.

Training

In this embryo that is about a centimeter long and weighs less than a gram, it will more than double this week The buds of arms, the hand plate and the shovel-shaped lower limb become visible. The brain is transformed into five areas and some cranial nerves are visible. The heart continues to develop and now beats at a regular rate. The lungs also continue to develop. The tail of the embryo begins to fall. The heart beats and the skeleton takes shape. The placenta continues to form and will begin to pass nutrients from your body to the baby’s and remove its waste products. The umbilical cord, the life line between mother and child, begins to grow and widen. Tissue is also formed that has to become the vertebrae and some other bones. Blood travels through the major vessels. In addition, the embryonic digestive tract is formed with a hole corresponding to the mouth and the lower part of the intestine already present. The development of the structures of the eye and ear begins. In what looks more and more like a face, it is possible to glimpse a slight pigmentation in the iris of the eyes and two tiny windows corresponding to the future nose. Little by little, the embryo grows, each time we can differentiate its parts more and in a few more weeks we will speak of “fetus”. Its development continues unstoppable in the second month of pregnancy and the advances in the growth of the embryo are spectacular. The development of the structures of the eye and ear begins. In what looks more and more like a face, it is possible to glimpse a slight pigmentation in the iris of the eyes and two tiny windows corresponding to the future nose. Little by little, the embryo grows, each time we can differentiate its parts more and in a few more weeks we will speak of “fetus”. Its development continues unstoppable in the second month of pregnancy and the advances in the growth of the embryo are spectacular. The development of the structures of the eye and ear begins. In what looks more and more like a face, it is possible to glimpse a slight pigmentation in the iris of the eyes and two tiny windows corresponding to the future nose. Little by little, the embryo grows, each time we can differentiate its parts more and in a few more weeks we will speak of “fetus”. Its development continues unstoppable in the second month of pregnancy and the advances in the growth of the embryo are spectacular.

Neurogenesis

It is an extremely rapid cell division process that produces neurons. The baby’s brain will have a billion neurons. Most of the information processing “circuits” are formed during the first four months of pregnancy. As incredible as it may seem, unlike other parts of the human body, the brain does not generate new cells (although there is new research that speaks of the birth of some types of neuron). Still, although it is difficult for them to renew themselves, neurons have a very long life (around 100 years)

 

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