describe unique aspects of fetal circulation.
The fetal circulation is the circulatory system of a fetus. Which includes the umbilical cord and the blood vessels within the placenta that carry fetal blood.
The fetal (prenatal) circulation works differently from normal postnatal circulation, mainly because the lungs are not in use. Instead, the fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord. The advent of breathing and the severance of the umbilical cord prompt various neuroendocrine changes that shortly transform fetal circulation into postnatal circulation.
Blood from the placenta is carried to the fetus by the umbilical vein. In humans, less than a third of this enters the fetal ductus venosus and is carried to the inferior vena cava, while the rest enters the liver proper from the inferior border of the liver. The branch of the umbilical vein that supplies the right lobe of the liver first joins with 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 (the foramen ovale), and most of the blood flows through this hole directly into the left atrium from the right atrium, thus bypassing pulmonary circulation. The continuation of this blood flow is into the left ventricle, and from there it is pumped through the aorta into the body. Some of the blood moves from the aorta through the internal iliac arteries to the umbilical arteries, and re-enters the placenta, where carbon dioxide and other waste products from the fetus are taken up and enter the maternal circulation.
Some of the blood entering the right atrium does not pass directly to the left atrium through the foramen ovale, but enters the right ventricle and is pumped into the pulmonary artery. In the fetus, there is a special connection between the pulmonary artery and the aorta, called the ductus arteriosus, which directs most of this blood away from the lungs (which are not being used for respiration at this point as the fetus is suspended in amniotic fluid).
Describe the process of implantation. Identify the placenta and embryonic membranes on anatomical models and describe their functions. d. e. f. Describe the fetal circulation and how it differs from adult circulation. Describe the process of implantation. Identify the placenta and embryonic membranes on anatomical models and describe their functions. d. e. f. Describe the fetal circulation and how it differs from adult circulation.
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?
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
Question 16 6.25 pts The nurse is describing the process of fetal circulation to a client during a prenatal visit. The nurse tells the clientthat fetal circulation consists of O Veins that carry deoxygenated blood to the fetus O Arteries that carry oxygenated blood to the fetus Two umbilical veins and one umbilical artery Two umbilical arteries and one umbilical vein
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
Trace the pathway that a drop of blood will take in the fetal circulation traveling from the placenta to the aorta (trace the three shunts).
6. Briefly describe the pulmonary circulation. 7. Briefly describe the systemic circulation. 8a. What is the function of the platelets? 8b. What is the function of red blood cells? 9a. Name 2 different functions of white blood cells? 9b. What is the most common white blood cell? 10a. What is leukemia? 10b. What is hemophilia?
Describe the key aspects of each of the four frameworks and models (Iowa, OMRU, PARIHS, and JBI). What do they share? What is particularly unique about each model?
MACBETH. . What is the technical process used to create this poster? . Describe two unique aspects of the "look" of the technical process.
Describe the causes and characteristics of fetal alcohol syndrome.