Both the normal flow of blood through the heart and the flow with the foramen ovale still open. Give a description of the concept of oxygenated and deoxygenated blood. Introduction: A foramen ovale is an opening in septum secundum, that is a partition between the left and right atrium. The blood flows from the right atrium towards the left atrium because this opening is unidirectional in the embryo. The closing of this foramen occurs when the baby is born, generally, lungs are firstly filled with air, parting only the fossa ovalis (a rounded divot). Fossa ovalis is an oval-shaped depression within interatrial septum, which only remains of the embryonic aperture or opening.

Question

Want to see the full answer?

Answer 1

Question

Chapter 19, Problem 1CSL

Summary Introduction

To explain:

Both the normal flow of blood through the heart and the flow with the foramen ovale still open. Give a description of the concept of oxygenated and deoxygenated blood.

Introduction:

A foramen ovale is an opening in septum secundum, that is a partition between the left and right atrium. The blood flows from the right atrium towards the left atrium because this opening is unidirectional in the embryo. The closing of this foramen occurs when the baby is born, generally, lungs are firstly filled with air, parting only the fossa ovalis (a rounded divot). Fossa ovalis is an oval-shaped depression within interatrial septum, which only remains of the embryonic aperture or opening.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

A young couple that you are friends with gave birth to a new baby. They were told by their physician that the foramen ovale did not close between the right atrium and left atrium (i.e., that their baby has “a hole in her heart”). They know that you are a nurse and have come to you to help them to understand what is going on. Explain both the normal flow of blood through the heart and the flow with the foramen ovale still open. Include in your description the concept of oxygenated and deoxygenated blood.

You have a young woman on your ward who is awaiting heart surgery. She is keen to know about the structure and function of the heart and asks you to explain the flow of blood through the heart from start to finish. She wants to hear anatomical names and learn about physiological processes ejecting blood from her heart, your response will help keep her distracted from thinking about her upcoming operation. a. Describe the flow of blood through the heart, naming each of the vessels bringing and taking blood to and from the heart. Include chambers of the heart and name structures in the correct sequence along the blood's pathway through the heart - begin with blood returning to the heart from the body and end with blood being ejected into the systemic circulation. Include the names of the valves and identify which valves are open and closed during each cardiac cycle. Describe, using terms like diastole and systole, the changes in ventricular pressure during one cardiac cycle and…

Tia developed Rheumatic heart disease when she was 19 years old that caused stenosis of her mitral valve. Long-standing mitral stenosis led to left atrial enlargement. She is 29 now and her cardiologist, Dr. Irma Wu, advised her replacement of the mitral valve. According to her doctor, after the valve replacement, she would require life-long blood thinners. Using your knowledge of physiology, explain how can clot formation be prevented prophylactically? Knowing ECG. Do you think you can predict atrial enlargement from ECG? Why or why not? Support your answer with reasoning.