The development of the child in the womb
Pregnancy And Childbirth / / August 12, 2017
stages of child development in the womb
development of the child in the womb occurs gradually over a period of 9 months of pregnancy.But in the first trimester (12 weeks) is the formation of all organs and systems of the body - this is the most important stage of development of the embryo, while the second and third trimesters of the child is growing rapidly, gaining weight, is getting ready for life outside the womb.Consider the main points of development for weeks.By the way, this week (with regards to the first trimester) are considered the most dangerous for the baby.Any adverse effects may lead to the formation of a pathology or a miscarriage.
What are the approximate stages of child development in the womb for weeks on end?
Let's start with 5 weeks of gestation (this is approximately 1 week delayed menstruation in women, believe in accordance with the terms of midwifery).The size of the embryo just 3 millimeters, and it already begins to form the neural tube, the heart and lungs, thyroid gland.
6 week - the embryo there are the beginnings of arms and legs.On US have distinctly different two hemispheres of the brain.It begins bowel formation.embryo reaches a length of 7 millimeters.
7 weeks. already seen interdigital spaces.On ultrasound visible dimples (embryo eyes), auditory and nasal fold elevation - the future ears.embryo Length - 8 mm.
8 weeks. In these 7 days the embryo is growing rapidly at the beginning of the week it is the size of 15-20 mm at the end of the week - 2 times more.In the embryo begin to form facial features.Looms ears, nose and neck.
9 weeks. Fingers and toes are already clearly defined.There is intensive development of the circulatory system.
10 week characterized by the development of the fetus sucking reflex.
By 12 week fetus has a good sensitivity, it shows the development of his central nervous system.Reaction observed not only touch but breathing.Skeletal system is becoming stronger.Thus there is a development of the child in the womb in the first trimester of pregnancy.
In 13-14 weeks genitals of boys reach such proportions that become visible on ultrasound at a good unit experienced.
16 week characterized by ossification of skull and increased mobility of the child, though, perturbations most expectant mothers have not noticed.Actively developing the muscular system.It weighs baby is about 180 grams and has a height of 13-14 centimeters.
In 20 weeks of pregnancy the baby becomes more and more like a cute baby, which we see on the covers of magazines.Head to the body becomes more proportional.However, the body is completely covered with vellus hair, which, for the most part, will be gone by the time of birth, and almost no fat, because of what the baby looks thin.But this does not prevent the child is actively moving inside mom, and she already notices.The growth of the baby reaches 19 centimeters and weighs 300 grams.
In 24 weeks of pregnancy the baby is the same in numbers increase, the weight of 600-700 grams.He is actively moving, heart pounding, and his punches have listened through a stethoscope midwife, if not prevent dense fatty tissue on the abdominal wall of the mother's and situated on the front wall of the uterus placenta.Babies, born prematurely on this term, doctors may go in the presence of modern equipment, highly skilled neonatologists and other favorable conditions.
In 28 weeks of pregnancy the baby can already distinguish sounds by ultrasound, if an experiment will be seen - what kind of music or tone of voice like the kid, and what is not.Contrary to popular belief, the sound source is not necessarily located in the mother's belly, because the sounds he hears through the mother's ears.And from the abdominal wall is securely protected amniotic fluid that "quenched" almost all the sounds.To understand how a child hears, being in the womb, try to play music and to dive with a head bath.
In 32 weeks quite viable child is born with a weight of 1500-2000 kg.However, his respiratory system is not yet adapted to life outside the womb, and therefore he should be in the incubator, which maintained a constant level of temperature and moisture.Missing many vital reflexes.
In 36 weeks child is almost ready for the birth, body fat on his body becomes greater.The skin becomes smoother, vellus hair fall out (at birth they are very small amount may remain on the back of the baby).The sucking reflex is present, and it means - he can suckle its mother, which is very important both in terms of their health and psychological contact of mother and child.
38-40 weeks - a healthy baby is completely viable.
These are the main stages of development of the child in the womb.