Red Blood Cell Essay
The path of a RBC consist of it first beginning in the heart as the RBC transports oxygen into the aorta by the aortic valve through contracting of the left ventricle. From the aorta, the RBC then travels through an artery with the help of arterioles to reach the capillaries. When in the capillary, the oxygen molecule that is carried by the RBC then detaches and travels through the capillary into the tissues of the body. RBC exchanges oxygen with carbon dioxide, as they are now known as deoxygenated RBC. The deoxygenated RBC then travels through the venules, veins, and returns to the right atrium of the heart by the superior or inferior venacava. The deoxygenated RBC then moves to the right ventricle within the tricuspid valve to the lungs through …show more content…
The body consists of four pulmonary veins two from each lung (RSNA, 2016).
AV valve between R atrium and R ventricle
The tricuspid valves function is to prevent a back flow of blood into the right atrium. It forms the boundary between the right ventricle and right atrium. Deoxygenated blood enters into the right side of the heart through the inferior/superior vena cava. It is made up of three flaps like cusps so when it is closed it prevents blood from regressing back into the right atrium (Heart, 2016).
Divides the heart longitudinally into R and L sides
The internal partition separates the heart longitudinally known as the interatrial septum. This is where it divides the atria and the interventricular septum and separates the ventricles (AJR Online, 2016).
Carries oxygenated blood to all arteries
The pulmonary veins are a large blood vessel, which receives oxygenated blood from the lungs, then drains into the left atrium of the heart (RSNA, 2016).