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.

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Chapter 19, Problem 1CSL

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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.

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