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More than one choice may apply.
Microscopic examination of a section of the kidney shows a thick-walled vessel with glomeruli scattered in the tissue on one side of the vessel but not on the other side. What vessel in this?
a. Segmental vein
b. Cortical radiate artery
c. Interlobar vein
d. Arcuate artery
Introduction:
The glomeruli are a bunch of capillaries that help in urine formation. They are scattered in the tissue on one side of the arteries only.
Answer to Problem 1MC
Correct answer:
The thick-walled vessel having glomeruli is scattered on one side of the arcuate artery.
Explanation of Solution
Explanation for the correct answer:
Option (d) is given that arcuate artery is the vessel. The arcuate arteries are the vessels of the kidney that work in the renal circulation. They arc over the medulla of the kidney and, thus, the glomeruli scattered in the tissue are found in one side of the arcuate arteries. Hence, option (d) is correct.
Explanation for incorrect answers:
Option (a) is given that segmental vein is the vessel. However, the segmental vein is not in the kidney. So, it is an incorrect option.
Option (b) is given that cortical radiate artery is the vessel. These are the blood vessels that radiate at the right angle toward the cortical substance from the sides of the arcuate arteries. So, it is an incorrect option.
Option (c) is given that interlobar vein is the vessel. The interlobar vein empties the blood from the kidneys into the inferior vena cava via renal veins. They do not have glomeruli scattered at one side. So, it is an incorrect option.
Hence, options (a), (b), and (c) are incorrect.
The glomeruli are found on one side of the arcuate arteries in the section of the kidney.
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Chapter 15 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
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