Fetal Circulation Ppt

In order to view it, please contact the author of the presentation. Closure of ductus venosus is caused by strong contraction of muscle wall of ductus venosus, but the cause of this contraction is not revealed yet. Most of this blood is shunted through the ductus arteriosus to the descending aorta. The majority of the blood enters the ductus venosus, a shunt which bypasses the liver and puts blood into the hepatic veins.

The fetus is connected by the umbilical cord to the placenta, the organ that develops and implants in the mother's uterus during pregnancy. Oxygen and nutrients from the mother's blood are transferred across the placenta to the fetus.

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But aside from that it's free. Now customize the name of a clipboard to store your clips. Foramen Ovale allows the reddest blood to go from the right atrium to left atrium and then to the left ventricle and out the aorta. Blood enters the right atrium, the chamber on the upper right side of the heart.

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Your email address will not be published. The blood then reaches the inferior vena cava, a major vein connected to the heart. Prevents mixing with desaturated blood in portal circulation. Immediately after birth due to thermal and mechanical stimuli and increased oxygen tension leading to constriction. Are you sure you want to Yes No.

Fetal Circulation - PowerPoint PPT Presentation

Successfully reported this slideshow. Fetal Echocardiography - Fetal Echocardiography Dr. Show related SlideShares at end.

At birth, the umbilical cord is clamped and the baby no longer receives oxygen and nutrients from the mother. Blood then passes into the left ventricle lower chamber of the heart and then to the aorta, the large artery coming from the heart. Associated with asphyxia, meconium aspirations.

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Right atrium of fetal heart is. The change from fetal to postnatal circulation happens very quickly. There is truly something for everyone! After circulating there, the blood returns to the right atrium of the heart through the superior vena cava.

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View by Category Toggle navigation. The fetal circulatory system uses three shunts, which are small passages that direct blood that needs to be oxygenated.

The enriched blood flows through the umbilical cord to the liver and splits into three branches. Resistance to blood flow is high in lungs. Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.


More than one-third of blood takes this route. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. After it closes, the remnant is known as ligamentum venosum. The umbilical arteries carry blood to the placenta, and the blood permeates the sponge-like material there.

When the blood enters the right atrium, most of it flows through the foramen ovale into the left atrium. Because of this high pressure, sat tests the blood is diverted from pulmonary artery into aorta. The Foramen Ovale This means the oval opening. This less oxygenated blood is pumped from the right ventricle into the aorta.

This contraction of smooth muscle occurs becuase of the increase in availability of oxygen. Upload from Desktop Single File Upload. Clipping is a handy way to collect important slides you want to go back to later.

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How does the fetal circulatory system work? Fetal Circulation - Documentation - normal heart sounds at time of auscultation! Presentation Description fetal circulation. Waste products and carbon dioxide from the fetus are sent back through the umbilical cord and placenta to the mother's circulation to be eliminated.

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You do not have the permission to view this presentation. Lungs do not exchange gas. Is a valve with two flaps that prevent back-flow.

They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. It is further replaced by fibrous tissue, called ligamentum arteriosum. The red blood then returns to the fetus via the umbilical cord umbilical vein. The two hypogastric arteries or umbilical arteries. Durr-e-Sabih Multan, Pakistan dsabih yahoo.

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