Asked by Yamilette Santos on Jul 27, 2024
Verified
Which renal structure is responsible for producing hypertonic urine by reabsorbing water while allowing metabolic wastes and NaCl to pass through?
A) Glomerulus
B) Proximal convoluted tubule
C) Distal convoluted tubule
D) Collecting duct
E) Nephron loop
Hypertonic Urine
Urine that has a higher osmotic pressure than the surrounding fluids, indicating a high concentration of solutes.
Collecting Duct
The tubule segment in the kidneys that receives urine from multiple nephrons and transports it to the renal pelvis, playing a key role in the body's ability to concentrate urine.
Metabolic Wastes
Byproducts produced from the body’s metabolic processes, which need to be excreted to maintain homeostasis.
- Understand the procedure and importance of concentrating urine and the mechanism of countercurrent exchange.
Verified Answer
LT
Leonora TravellaJul 29, 2024
Final Answer :
D
Explanation :
The collecting duct is responsible for the final concentration of urine. It reabsorbs water, making the urine hypertonic to the blood, under the influence of antidiuretic hormone (ADH), while allowing metabolic wastes and NaCl to pass through.
Learning Objectives
- Understand the procedure and importance of concentrating urine and the mechanism of countercurrent exchange.