10 Questions
What is the primary location where sodium and bicarbonate are reabsorbed back into the bloodstream?
Thick ascending limb of the Loop of Henle
Which of the following ions enter the thick ascending limb compartment of the Loop of Henle via the NKCC2 transporter?
Sodium, potassium, and chloride in specific ratios
In the process of selective reabsorption in the proximal convoluted tubule, how is glucose reabsorbed into the blood?
By active transport
What enzyme catalyzes the dehydration of carbonic acid into water and carbon dioxide in the lumen-urine within the PCT?
Carbonic anhydrase
What happens to hydrogen ions in the lumen-urine when bound to bicarbonate inside the proximal convoluted tubule?
Formation of carbonic acid
Which part of the nephron is responsible for reabsorption of approximately 80% of the glomerular filtrate via selective reabsorption?
Proximal convoluted tubule
What is the primary mechanism by which water and carbon dioxide enter the PCT compartment in the nephron?
Passive diffusion
Which segment of the nephron has thin walls, making them permeable to water and allowing urea to enter the filtrate?
Descending limb of the Loop of Henle
Which process actually forms water and carbon dioxide from carbonic acid within the PCT in the nephron?
Dehydration
In the Loop of Henle, which region is the most concentrated due to the transport of chloride ions and free passing of sodium ions?
Ascendig limb
Learn about the hair-pin bend structure of the Loop of Henle, its descending and ascending limbs, and its role in reabsorption of sodium, potassium, chloride, and water in the kidneys.
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