Hello, I don’t understand why the answer for this question is E, doesn’t every region (1-4) contain urea? Why isn’t the answer A? None of the regions contain “no urea”, and only a small part is filtered out in the thin segment of the ascending limb to maintain the hyperosmotic medulla…
1 Like
Hey James,
the question is asking about which of the regions contain liquid with no urea, therefore the answer is none of them. None of them have no urea, which means all of them contain urea:) It is a double negation they probably used to confuse people. Hope it helps!
3 Likes