What happens to a future child at the 25th week of gestation?
By this time period, the fruit reaches about 22 cm, if measured from its sacrum to the crown. The total growth of the future baby is about 32 cm. The body weight of the fetus at this time is about 700 g. For a week the baby collects 150 grams.
The organs and systems are actively developing. So, in particular, changes are noted in the respiratory system. There is a ripening of the alveoli, which are prepared for the first inhalation of the baby. However, the surfactant is not yet present on their surface. Complete maturation of this system occurs only to the 36th week of gestation.
At this time the formation of cartilaginous structures is noted. In particular, it acquires its ordinary, all known form, the auricle.
One of the important events of the child's development at the 25th week of pregnancy is the transition of the function of hematopoiesis from the liver and spleen to the red bone marrow, as in adults. It is in it that the uniform elements of the blood of the future baby begin to form.
By this time period, the future child has already developed a perfect sense of smell, other senses. The baby responds well to external stimuli: bright light, loud sound. A future mother can feel this by increasing the motor activity of the baby, which, after referring to the stomach, a beam of light is compressed or, on the contrary, begins to move chaotically with handles and legs, as seen on the screen of the ultrasound monitor.
In the 25-26 weeks of pregnancy, the fetal musculoskeletal system develops. That is why all movements and tremors become more intense. Even if you put your hand to the abdominal surface at the right time, you can feel a light blow on the palm. Movements of the baby become more coordinated. When carrying out ultrasound at this time, you can often see how the future baby plays with the umbilical cord, sucks a finger, grabs his leg with a pen. When trying to examine the features of the face, the fruit often covers it with his hands. By this point, as a rule, the leading hand is already determined.
What parameters are taken into account when performing ultrasound at this time?
First of all, with this kind of research the doctor estimates the size of the fetus. It should be noted that there are no exact figures that the body parameters of each baby should match. After all, the body has individual features of development, which in turn depend on the hereditary factor.
So, on average, the diameter of the baby's head at this gestation period is approximately 62 mm, chest rib 63, and the diameter of the abdomen is 64 mm.
One of the important indicators of the process of vital activity of the fetus is the number of palpitations. So, on average, at this time a small heart commits about 140-150 cuts per 1 minute. Heart rhythm can be easily heard through the anterior abdominal of a pregnant woman, simply by attaching an ear.
A separate object of research at this time is the placenta.
In addition to the above, an uzist doctor at the 25th week of pregnancy, assessing the development of the baby, fixes the volume of amniotic fluid, examines the uterus itself.
Thus, as can be seen from the article, the development of the future child at 24-25 weeks of pregnancy is at an intensive pace. At the same time, the mother herself at this time feels well, because The excruciating manifestations of toxicosis have long since been left behind.