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In: Anatomy and Physiology

Describe the path a red blood cell takes traveling through the body. Begin your RBC in...

Describe the path a red blood cell takes traveling through the body. Begin your RBC in the right atrium and show its path until it returns to the right atrium. There should be at least 7 steps, but could be more depending on how detailed you get.  

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Path of RBC

RBC reach the right atrium through superior and inferior vena cava. The RBC in right atrium is deoxygenated. It then passes throgh tricuspid valve to reach the right ventricle. It then passes through the semilunar valve to reach the pulmonary artery . The pulmonary artery carries the deoxygenated RBC to lungs where the oxygenation of RBC takes place. The oxygenated RBC in lung capillaries enters the pulmonary vein. This then pases through pulmonary vein to reach left atrium. From left atrium it moves through bicuspid valve to reach left ventricle. From left ventricle it is passed to aorta through semilunar valves. Aorta distribute the oxygenated RBC to large arteries and further smalelr areteries , to arterioles to capillaries. These oxygenated RBC reach tissues where oxygen is utilised and carbon dioxide is given. The RBC become deoxygenated. It moves to venule s , veins , larger veins and to superior and inferior vena cava to enter the right atrium of the heart.

Sydney Mullin answered 1 year ago
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