EXCRETORY SYSTEM
COLLECTING TUBULE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Descending limb
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proximal part of descending limb is continuous with proximal tubule
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thin in some nephrons
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distal portion also called descending thin limb; simple squamous epithelium
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cuboidal or columnar cells
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Explanation:
Detailed explanation-1: -The loop is also sometimes called the Nephron loop.
Detailed explanation-2: -The nephron loop is the U-shaped bend of a nephron which extends through the medulla of the kidney. Histologically, it consists of two parts; thin descending and thin ascending limbs. Both limbs are composed of simple squamous epithelium.
Detailed explanation-3: -The descending loop is thinner than the ascending loop. It also has thick and thin segments like the ascending loop, but they are not distinguishable. The thinner portion of the limb is composed of simple squamous epithelium, and the thick portion is composed of simple cuboidal epithelium.
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