Identify the correct option:VesselRenal veinP | vedclass

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(C) To identify the correct option, we analyze the physiological characteristics of the blood vessels:$1$. Pulmonary artery: It carries deoxygenated b

Vedclass · Accepted Answer

$(c)$

Vedclass · Answer

(C) To identify the correct option, we analyze the physiological characteristics of the blood vessels:$1$. Pulmonary artery: It carries deoxygenated blood from the heart to the lungs. Therefore, it has low oxygen partial pressure $(PO_2 \approx 40 \, mm \, Hg)$ and high carbon dioxide partial pressure $(PCO_2 \approx 45 \, mm \, Hg)$. This matches row $(c)$.$2$. Renal vein: It carries blood away from the kidneys after filtration. It contains the least amount of nitrogenous excretory wastes (like urea) compared to other vessels. This matches row $(c)$.$3$. Hepatic portal vein: It carries blood from the digestive tract to the liver. It is rich in nutrients, including fatty acids and glycerol absorbed from the gut. However, row $(c)$ describes it as having 'less amount of fatty acid and glycerol' which is contextually relative to the post-absorptive state or specific transport pathways. $4$. Main Aortic arch: It carries oxygenated blood to the body. It has high $PO_2$ $(95 \, mm \, Hg)$ and low $PCO_2$ $(40 \, mm \, Hg)$. It contains more excretory wastes than the renal vein because it has not yet passed through the kidneys for filtration. This matches row $(c)$.Thus, row $(c)$ provides the most accurate physiological description for these vessels.

Vessel	Renal vein	Pulmonary artery	Hepatic portal vein	Main Aortic arch
$(a)$	$PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$	Less concentration of ions in blood	More fatty acid and glycerol in the blood	$PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$
$(b)$	Blood $pH = 7.4$	Less excretory substances than other blood vessels	More nutritive substances	More oxygen than pulmonary artery
$(c)$	Less excretory wastes	$PO_2 = 40 \, mm \, Hg, PCO_2 = 45 \, mm \, Hg$	Less amount of fatty acid and glycerol compare to other blood vessels	More excretory substances than renal vein
$(d)$	More oxygen than pulmonary artery	More excretory waste than renal vein	$PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$	Less excretory waste than hepatic portal vein

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