The Mircle of Life- Prenatal Development Essay

In the fetal circulatory routes blood flows through the fetus that is actually complicated than after the baby is born. The fetal circulatory system it you have to use three shunts, they are a small passages that they direct blood that needs to be oxygenated. The shunts they bypass the lungs, in it moves blood from the right atrium of the heart to the left atrium, and the ductus arteriosus, which moves blood from the pulmonary artery to the aorta.

The human placenta is a chimeric organ, containing both maternal and fetal structures: the maternal decidua and the fetus-derived chorionic villi. During normal placental development, fetal cytotrophoblasts (CTBs) originating from the chorionic villi invade the maternal decidua to anchor the growing fetus. Fetal trophoblasts act as a barrier between the maternal and fetal compartments and are refractory to viral infection during the third

Therefore, reiterating the importance of cytotrophoblast invasion and uterine spiral artery remodelling in order to decrease maternal vascular resistance and escalating uteroplacental blood flow.

Starting from the beginning every single human being on the planet Earth started out as a sperm and egg. During conception, the sperm fertilizes the egg and you develop into what scientists refer to as a zygote. Through research scientist have been able to determine when implantation is futile, the first two weeks of a zygotes life is uncertain and as many as 30% zygotes don’t survive. Every week of a pregnancy is important to the growth and development of a baby. Have you ever thought about when a baby develops fingernails, hair or even their teeth? A baby develops in three trimesters: the most development happens within the first and the second trimester. All the while, the baby is only viable when it reaches the third trimester. Through the three trimesters each characteristic develops within a certain time period, through this rigorous process the child develops unique characteristics such as their fingerprints, hair, and teeth.

Najate Achamrah and Agnes Ditisheim believe that defective placenta releases many factors to the maternal circulation such as, pro-inflammatory cytokines, syncytiotrophoblast micro particles, angiogenic and antiangiogenic factors which is in turn cause endothelial cell dysfunction and increase vascular resistance that result in the maternal syndrome. (Najate Achamrah & Agnes Ditisheim, 2018).

A baby is formed when a sperm makes its long journey and finally meets an egg. Usually, the fetus

The link between SP-A and SP-D and the initiation of an unplanned pre-term labour is supported by observations made by Bernal and Phizackerley. It has been shown that amniotic fluid surfactant is an important intrauterine source of arachidonic acid, and increases the rate of prostaglandin synthesis in the foetal membrane. Foetal surfactant has also been associated with amnion cells contributing archidonate for

A uterine contraction can result in a decreased uteroplacental blood flow. A placenta with borderline function before labor may be unable to maintain gas exchange adequate to prevent fetal asphyxia during labor. The healthy fetus may compensate for the effects of hypoxia during labor (Parer & Livingston, 1990; Court & Parer, 1984). The compensatory response includes (1) decreased oxygen consumption, (2) vasoconstriction of nonessential vascular beds, and (3) redistribution of blood flow to the vital organs (e.g., brain, heart, , placenta adrenal glands) (Peeters et al., 1979; Cohn et al., 1974). Humoral responses (e.g., release of vasopressin and endogenous opioids, release of epinephrine from the adrenal medulla) may enhance fetal cardiac function during hypoxia (Parer, 1997). Prolonged or severe hypoxia overwhelms these compensatory mechanisms, resulting in fetal injury or

Delivery of the placenta is when labor comes to an end with a few contractions and pushes. These cause the placenta to separate from the wall of the uterus and be delivered in about 5 to 10 minutes (Berk, 2014).

All visible placental anastomoses were coagulated as well as the placental tissue between the coagulated vessels. Pre-Laser ultrasound data including Doppler assessment, surgical data, one-week post-Laser ultrasound data, and postnatal survival at hospital discharge were recorded and analyzed.

Fetal circulation is the oxygenated blood carried from the placenta to the fetus through the umbilical vein. Half of the blood passes through the hepatic capillaries and the rest flows through the ductus venous into the inferior vena cava. Blood from the vena cava is mostly deflected through the amen ovale into the left atrium, then to the left ventricle, into ascending aorta and on to the head and upper body. The arterial oxygenation of this blood is approximately 25 to 28 mm Hg. The fetal coronary circulation and brain receive

the first step or start of formation is by the outset of fetal folding, the caudal balance of U-tubes intra embryonic grotto artless communicates Around extra embryonic coelom (chorionic break down ). Thwart the lateral folding this message is rapt , and consolidation of 3 layers of the concealed go round on both sides and the primitive umbilical ring is formed. The in the midst accouterment of umbilical vesicle umbilical vesicle gets incorporated within the embryo forming the midgut. With the suggestion of midgut, ventral mesentery and dorsal mesentery the intraembryonic coelom is divided into beloved halves . The dorsal mesentery suspends the special to the footing abdominal barrier, it extends strange the

The device consists of a clear plastic bag filled with synthetic amniotic fluid, much like the inside of a mothers womb. A machine outside the bag is attached to the umbilical cord to function like a placenta, providing nutrition and oxygen to the blood and removing carbon dioxide. This is detrimental to the development of a fetus, as everything needs to be re-created in such a way that there is no difference in the natural and artificial methods. This ensures that the development and maturation of the fetus.

Maternal nourishment and placental insufficiency77 are particularly applicable in fetal development and advancement, as these components directly affect deciding the sum and nature of supplement supply to the incipient organism and baby.

Development of a fetus in the womb is a remarkable period of rapid growth and creation for the young life to be. There are a myriad of outside forces that can influence the advancement of the zygote in its journey from fertilized egg to blastocyst, embryo and fetus. These outside forces can have profound implications for the mind and body of the young life both immediate and throughout the lifespan. Exposure to these environmental hazards can come from many different sources, some known and predominantly understood, others are not. These all can lead to vastly different outcomes for the child while in utero and after birth. To be able to fully understand the mechanics of fetal development, the outside hazards that can influence its growth