HISTOLOGY
URINARY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
remove water and additional solutes.
|
|
|
help regulate aldosterone secretion.
|
|
|
increase the rate of active transport of Na+ in the distal tubules and collecting ducts.
|
|
|
dilute the filtrate by removing solutes.
|
Detailed explanation-1: -A: The ascending limb of the loop of Henle functions to dilute the filtrate by removing solutes. The thin segment of the ascending limb is not permeable to water, but it is permeable to solutes. B: The cuboidal cells of the distal tubule and collecting duct function to remove water and additional solutes.
Detailed explanation-2: -In summary, the loop of Henle is surrounded by tissue fluid which has a high concentration of ions in it. This causes water to move out of the descending limb by osmosis. This produces a more concentrated filtrate because of this, ions move out of the loop in the thin ascending limb.
Detailed explanation-3: -In the descending limb of the loop of Henle, water is removed from the filtrate by aquaporin proteins (water channels). The result is a highly concentrated filtrate at the bottom of the loop. The filtrate then enters the thick ascending limb, which is permeable to sodium ions.