From the session 10 we learnt that arteries carries oxygenated blood except pulmonary arteries, then ho did the aorta carries dirty blood to the kidney?
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Answers
Answer:
Aorta never carries dirty or deoxegenated blood. Instead of that it carries pure and oxegenated blood.
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Answer:
Explanation:
The heart
The heart is a unidirectional pump.
Valves are present to prevent the backflow of blood.
The right side pumps deoxygenated blood (low in oxygen and high in carbon dioxide) to the lungs.
The left side pumps oxygenated blood (high in oxygen and low in carbon dioxide) to the organs of the body.
BODY_SYSTEMS_CIRCULATION_HEART_CROSS_SECTION
- Deoxygenated blood enters the right atrium from the vena cava.
- Blood moves into right ventricle.
- Blood is pumped into the pulmonary artery.
- The pulmonary artery carries deoxygenated blood to the lungs.
- The blood becomes oxygenated in the lungs.
- Oxygenated blood leaves the lung via the pulmonary vein.
- Blood enters the left atrium.
- Blood moves into the left ventricle.
- Blood is pumped into the aorta, which carries oxygenated blood around the body.
This unidirectional flow of blood through the heart shows that mammals have a double circulatory system.
This means blood travels through the heart twice in one circulation of the body.
BODY_SYSTEMS_DOUBLE_CIRCULATORY_SYSTEM
Ventricular walls are thicker than atrial walls because the ventricles have to pump blood further.
The left ventricle wall is thicker than the right because it pumps blood around the body while the right pumps blood to the lungs, located close to the heart.
The following arteries and veins transport blood to and from some of the body’s organs:
