PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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deliver nutrients into the umbilical cord
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allow blood to travel from the right atrium to the left atrium
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deliver oxygen to the lungs
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allow blood to enter the brain
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Detailed explanation-1: -The hole between the top two heart chambers (right and left atrium) is called a patent foramen ovale (PFO). This hole allows the oxygen rich blood to go from the right atrium to left atrium and then to the left ventricle and out the aorta. As a result the blood with the most oxygen gets to the brain.
Detailed explanation-2: -The foramen ovale is an aperture in the muscular tissue between the left and right atrium that allows blood to cross the atria and bypass pulmonary circulation during fetal development. The surrounding tissue is composed of smooth muscle derived from the septum primum and septum secundum.
Detailed explanation-3: -The shunt that bypasses the lungs is called the foramen ovale. This shunt moves blood from the right atrium of the heart to the left atrium.
Detailed explanation-4: -The purpose of these shunts is to bypass the lungs and liver. That’s because these organs will not work fully until after birth. The shunt that bypasses the lungs is called the foramen ovale. This shunt moves blood from the right atrium of the heart to the left atrium.