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Excretory Products and Their Elimination

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion (A): Nephrons are of two types: Cortical & Juxta medullary, based on their relative position in cortex and medulla.
Reason (R): Juxta medullar nephrons have short loop of Henle. Whereas, cortical nephrons have longer loop of Henle.
In the light of the above statements, choose the correct answer from the options given below:

Excretory Products and Their Elimination

A is true but R is false

In majority of nephrons, the loop of Henle is too short and extends only very little into the medulla. Such nephrons are called cortical nephrons.
In some of the nephrons, the loop of Henle is very long and runs deep into the medulla. These nephrons are called juxta medullary nephrons.

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