During the first week of life, a baby floats about four to six inches above the mother’s belly. The fetus is about one-quarter the size of an Earth and begins to grow rapidly. By the end of the second month, the fetus already has a heart and external genitals. The liver starts to make blood cells. By week twelve, the fetus is fully formed and has a heartbeat.
The fetus begins to form its fingers and toes and is able to open and close its mouth and ears. Its eyes and genitals have developed and can be distinguished with an ultrasound. It also has a developing tongue, and is about 14 cm long. It is still unable to move or breathe on its own, but it is beginning to develop muscles. Its intestines are forming, but cannot fit in the uterus. Until week 12, it can only be seen protruding into the umbilical cord.
The fetus’s brain is very complex. It has a complex structure, consisting of two lobes, a spinal cord, and a nervous system. The fetus can respond to different stimuli and learn how to react to them. It can also distinguish between sweet and sour flavors, but is still not able to distinguish them. It is very sensitive to touch and can smell. It can even discern the scent of the mother.
At the end of the first week of life, the fetus begins to exercise its muscles and develop its inner ear. The fetus can feel various parts of the body, including the head and feet. Its reproductive system continues to develop, and the testes have started to descend from the abdominal cavity. Girls are developing their vagina. They are able to conceive and have their first milk. http://ayudas.invemar.org.co/web/babynamesdiary/home
The first week of life, a baby weighs about 2 pounds and measures 0.6 to 0.7 inches (16 to 18 millimeters) from the crown to the rump. The nose and eyelids have begun to form. The intestines are growing and the digestive system continues to develop. Its anus is forming and the intestines are getting longer.
The fetus has its own heartbeat and can be heard through a doppler. The fetus is able to make faces and yawn. At the end of the first week, the baby is nine to ten centimeters long, and its facial features are already quite human. When a baby is born, it reaches a full-term stage.
At 24 weeks, a baby’s organs are fully formed and has a distinct head. Its ears and face are still in the womb, but they have a distinct shape by the time they’re born. The skull is a complex structure and the baby’s face is not entirely round. The bones of the baby’s head overlap and mold during the birth process. The result is a pointed or elongated head. Fortunately, this head will round out over the next few days.
After the baby is born, it will take its first breath. This is called fetal breathing, and it is not uncommon for the fetus to breathe without the help of the mother. It takes its first breath only after birth, but it needs enough oxygen to survive in the world outside the womb. It is the umbilical cord that supplies oxygen to the unborn baby. https://www.cakeresume.com/me/baby-names-diary
In the first week, the umbilical cord is the baby’s living link to the mother. The cord is responsible for feeding the baby, removing waste, and conveying hormones. It also helps the baby get nutrients and a healthy environment. However, the umbilical cord will be used by the child after birth. Once it’s out of the womb, it will be used as a feeding tube for the baby.