What is a fetal circulation?
The term "fetal circulation" is used to indicate blood movement through the developing fetus. Because the developing fetus gets oxygen through the supply of the mother's blood, rather than breathing, there are a number of things about fetal circulation that are strange to allow the fetus to obtain oxygen needed to prosper and at the same time lay the foundations for the day when the child is born. Once the child is born, it must immediately adapt to the oxygen with the lungs, which requires a radical shift in the circulatory system. The fetus is supplied with oxygen and nutrients through the placenta, with the fetus to exchange waste products for expression through the mother's bloodstream in exchange for the necessary oxygen and nutrition. Oxygenation of blood occurs when the blood exhausted with oxygen passes through the placenta and lifts oxygen from the mother's blood. The blood moves with oxygenated blood and moves the heart, traveling through a fetal circulation system and re -selecting more oxygen from the placenta during waste products waste.
Several short -circuits, ductus venosus, ductus arteriosus and foramen ovale, are used to move blood around the fetus and circumvent certain parts of the circulatory system because they are not yet developing. In particular, lung circulation is maintained low to protect the lungs. When the child appears and takes the first breath, the circulatory system adapts to the change in the environment, and the pressure changes occurs in the circulatory system to close the shunty used to redirect blood.
During the weeks after delivery, the adjustment in the circulatory system designed to circulate the fetus gradually close up close. In some cases, this will not happen and the child is experiencing health problems. In the permanent circulation of the fetus, also Knojako persistent pulmonary hypertension, a short circuit that keeps the blood off the lungs remains open and the lungs do not receive enough blood. In these cases, supplementary oxygen is used to prevent damage caused by low oxygenation while the child has a chance to develop to make the circulatory system work withouthelp.
Complications can sometimes take place with a circulatory system in a newborn as a result of long -term work, congenital abnormalities or difficulty breathing immediately after birth. These problems are usually obvious because the child can become aconotic, with blue fingers, lips and toes due to poor circulation.