Name the 5 fetal structures and the main pathway of blood flow in fetal circulation. In your answer include the following: location of the fetal structures, functions of the fetal structures, and what postnatal structure each fetal structure becomes in the newborn circulation
The 5 fetal structures are as following :
Main pathway of blood flow in fetal circulation :
The umbilical vein carries blood from the placenta to the fetus. Even though, this is called a vein, it actually carries oxygen - rich blood. Some of the blood passes through an opening called the fetus ductus venosus and enters the inferior venacava. The inferior venacaca is a vessel that takes blood to the fetal heart. The rest of the blood enters the fetal liver through the vessel called the portal vein. The blood then moves to the right atrium of the heart.
In the fetus, there is an opening between the right and left atrium called the foramen ovale. Most of the blood flows through the hole directly into the left atrium from the right atrium. Fetal blood does not travel through the lungs because of this hole between the atria. The fetal blood travels from the left atrium to the left ventricle. Then it is pumped through the aorta, or the largest artery, into the body. Once the blood has lost much of its oxygen & picked up waste from the fetus, it returns to the placenta. The umbilical arteries are responsible for taking oxygen-poor blood and waste back to the placenta.
Location of fetal structures :
Function of fetal structures :
Fetus structure becomes in new born circulation :
Name the 5 fetal structures and the main pathway of blood flow in fetal circulation. In...
Focus Figure 20.25: Fetal and Newborn Circulation Match each of the fetal structures on the left to its appropriate postnatal structure on the right. View Available Hint(s) Reset Help 1 Fossa ovalis Foramen ovale ale Umbilical vein Ligamentum arteriosum Ductus venosus Umbilical arteries Ligamentum venosum Ductus arteriosus Median umbilical ligaments 5. Round ligament Submit
Describe the location of the following with regards to fetal circulation: foramen ovale, ductus arteriosus, ductus venous, umbilical arteries, umbilical veins. What do each of these structures become in the adults? Which of these structures bypasses the fetal liver? Which structures help blood bypass tje fetal lung? Is. lood in tje imbilical arteries oxygenated or deoxygenated?
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