Explanation At the time of the development of the fetus, the ductus arteriosus serves as a shunt on both the aorta and pulmonary artery. It arises at the time of fetal development and closes soon after birth. It is the blood channel located in the middle of the aorta and pulmonary artery of the fetus, which later moves towards the lungs to maintain minimal oxygen and nutrient supply to the lungs...

8th Edition

ISBN: 9780134243818

Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt

Publisher: PEARSON

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Question

Chapter 20, Problem 15CYU

Summary Introduction

To review:

The location of ductus arteriosus and its role in the shunting of blood flow in a pulmonary circuit.

Introduction:

Pulmonary circulation system requires a very little amount of blood. The fetus is not exposed to the external environment hence, the fetus does not breathe. There is no gaseous exchange that takes place in the fetal lungs thus, the blood supply in the fetal lungs is also limited. The placenta serves as the exchange site for respiratory gases between the maternal and fetal blood.

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Chapter 20, Problem 14CYU

Chapter 20, Problem 1RQ

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Chapter 20 Solutions

Human Anatomy (8th Edition)

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Solution Summary: The author explains the location of ductus arteriosus and its role in the shunting of blood flow in a pulmonary circuit.

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