The changes in cardiac anatomy and blood flow at birth. Introduction: Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

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Answer 1

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Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

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Fetal circulation and modifications after birth.

CIRCULATORY AND NERVOUS SYSTEMS OF THE CAT

Circulatory System 1. Why are the ventricles more muscular than the atria? 2. What valve prevents the backflow of blood from conus arteriosus to the ventricle?

Answer 2

Question

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

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Answer 3

Question

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

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Answer 4

Question

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

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Answer 5

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

Answer 6

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

Answer 7

Chapter 20, Problem 20.5.3AYLO

Summary Introduction

To analyze:

The changes in cardiac anatomy and blood flow at birth.

Introduction:

Before birth, the heart has a little point from which all the blood is pumped through the lungs of the fetus. There the fetal lungs receive enough blood for metabolic and development needs. but most of the blood bypasses the pulmonary circuit by two anatomical shortcuts in and near the heart of the fetus. These are the foramen ovale and ductus arteriosus. Therefore, most of the blood that the right ventricles pump into the pulmonary trunk use this bypass to enter directly into the aorta. But, at birth sudden changes in pressure gradients occurs which leads to changes in the cardiac anatomy and blood flow.

Answer 8

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Answer 11

Ch. 20.1 - Answer the following questions to test you...Ch. 20.2 - Parts of the fibrous skeleton sometimes become...Ch. 20.2 - Prob. 3BYGO Ch. 20.2 - Prob. 4BYGO Ch. 20.2 - Answer the following questions to test you...Ch. 20.3 - Answer the following questions to test you...Ch. 20.3 - Prob. 7BYGO Ch. 20.3 - Prob. 8BYGO Ch. 20.3 - Answer the following questions to test you...Ch. 20.4 - Why should mitochondria be large and more abundant...

Solution Summary: The author analyzes the changes in cardiac anatomy and blood flow at birth, including the closure of foramen ovale and ductus arteriosus.

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