The tubular fluid is ____ as it enters Bowman's capsule, ____ at the beginning of the loop of Henle, ____ at the tip of the loop, and ____ as it leaves the loop to enter the distal tubule.
A)isotonic; hypertonic; hypertonic; isotonic
B)isotonic; isotonic; hypotonic; hypotonic
C)isotonic; isotonic; hypertonic; hypotonic
D)hypertonic; hypotonic; hypertonic; isotonic
E)None of the above correctly fill in the blanks.

Question

Quizplus · Accepted Answer

The tubular fluid is isotonic as it enters Bowman's capsule because it is made up of filtered fluids from the blood plasma. It remains isotonic at the beginning of the loop of Henle. As the loop of Henle descends into the medulla, the fluid becomes concentrated and hypertonic. However, as the loop ascends, ions are removed from the fluid, making it hypotonic at the tip of the loop. Finally, the fluid becomes isotonic again as it leaves the loop and enters the distal tubule.

The Tubular Fluid Is ____ as It Enters Bowman's Capsule