First slide
Human Excretory System
Question

Select the correct difference between cortical nephrons and juxtamedullary nephrons.

 Cortical nephronsJuxta-medullary nephrons
1.Malpighian corpuscles are located in the cortexMalpighian corpuscles are located in the medulla
2.Fewer in numberMore in number
3.Henle’s loop is absentHenle’s loop is present
4.Vasa recta are absent or poorly developedVasa recta are well-developed

Moderate
Solution

In cortical nephrons, loops of Henle are short and vasa recta are absent or poorly developed. In juxtamedullary nephrons, loops of Henle are long and vasa recta are well-developed. In juxtamedullary nephrons, Malpighian corpuscles are located in the inner cortex (not medulla). Majority of nephrons (about 80%) are cortical nephrons (not juxtamedullary). Cortical nephrons have short loops of Henle.

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