ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glucose
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urea
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water
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oxygen
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carbon dioxide
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Detailed explanation-1: -Deposits of fat and cholesterol (plaque) can build up in the renal arteries. These plaque deposits can lead to atherosclerosis (narrowed arteries) and renal artery stenosis (blockages). Blood flows more slowly through narrowed renal arteries. As a result, pressure builds up in blood vessels throughout the body.
Detailed explanation-2: -Water, oxygen, glucose, toxins and urea are in higher concentration in the renal artery than in the renal vein.
Detailed explanation-3: -The hepatic vein is connected to the liver. It transports the deoxygenated blood with urea away from the liver to the inferior vena cava. That’s why the hepatic vein contains the highest concentration of urea.
Detailed explanation-4: -During unsuccessful attempts to measure the rate of flow of blood through the kidney, we found that the concentration of urea may be higher in the renal vein than in the renal artery.