Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The Malpighian corpuscle, PCT and DCT of all nephrons are situated in the cortical region of the kidney. Reason (R): The loop of Henle of all nephrons extends deep into the renal medulla. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

According to NCERT, the Malpighian corpuscle, proximal convoluted tubule (PCT) and distal convoluted tubule (DCT) of the nephron are situated in the cortical region of the kidney. Therefore, Assertion (A) is true. The length of the loop of Henle varies among nephrons. In the majority of nephrons (cortical nephrons), the loop of Henle is too short and extends only very little into the medulla. Only in some nephrons (juxtamedullary nephrons) is the loop of Henle very long and runs deep into the medulla. Therefore, Re