Respuesta :
The nephron forms the basic functional unit of the kidney and comprises of various parts as shown in the picture.
Urine is formed by the process of ultrafiltration, and collected in the proximal tubule, from where it passes to the loop of Henle, the distal tubule and the collecting ducts, undergoing the processes of reabsorption and secretion to form the urine that is ultimately passed out. The concentration of urine so formed is governed by the water and elecrolyte balance of the body, and the required concentration is achieved by the processes mentioned above in the nephron
Water enters the peritubular fluids around the tubular fluids in the descending limb of the nephron loop, leaving a small volume of highly concentrated tubular fluid behind.
What is nephron loop?
The nephron loop would be a U-shaped tube made up of an ascending as well as a descending limb. It starts in the cortex, where the proximal convoluted tubule's filtrate is received. It then travels into the medulla, empties further into the distal convoluted tubule, then reappears to the cortex.
What is peritubular fluids?
The peritubular capillaries discharge surplus water and some essential minerals into the tubule as well as reabsorb beneficial nutrients like glucose or amino acids. Chemical gradient osmosis, hydrostatic pressure, as well as hydrostatic pressure, make up the bulk of exchange across the peritubular capillaries.
Water enters the peritubular fluids around the tubular fluids in the descending limb of the nephron loop, leaving a small volume of highly concentrated tubular fluid behind. Water must be reabsorbed in order for this reduction to happen. The ascending limb of the tick is impervious to solutes including water.
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