Renal Cortex & Medullary Pyramids — NEET Biology
📚 Practice ConceptCortical portions projecting between the medullary pyramids in the human kidney
Assertion (A): The kidney can concentrate urine effectively. Reason (R): The proximity between the Henle’s loop and vasa recta, as well as the counter current in them help in maintaining an increasing osmolarity towards the inner medullary interstitium.
View solution & NCERT explanation
Correct answer: A — If both assertion and reason are true and the reason is the correct explanation of the assertion.
NCERT states “The proximity between the Henle’s loop and vasa recta, as well as the counter current in them help in maintaining an increasing osmolarity towards the inner medullary interstitium” and “Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed.” The Assertion is true - kidneys can concentrate urine. The Reason explains HOW this concentration is achieved through the counter-current mechanism.
What does NCERT say about Cortical portions projecting between?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.