NEET PG DENTAL EXAM

Detailed explanation-1: -The environment of the medulla has a higher osmolarity than the inside of the nephron. You know what that means-osmosis time! Water travels from inside the nephron tubes, through a semipermeable membrane, out into the medulla. Eventually, concentrated urine is left in the nephron.

Detailed explanation-2: -The majority of water reabsorption that occurs in the nephron is facilitated by the AQPs. Most of the fluid that is filtered at the glomerulus is then reabsorbed in the proximal tubule and the descending limb of the loop of Henle.

Detailed explanation-3: -Most water reabsorption takes place in the proximal convoluted tubules, part of the nephrons in the kidney. Water is reabsorbed by a process called osmosis; the diffusion of water from an area of high water potential to an area of low water potential through a partially permeable membrane.

Detailed explanation-4: -Osmosis is a phenomenon of paramount significance for the transport of water and solutes through biological membranes. It accounts for fluid transport out of the kidney tubules and the gastrointestinal tract, into capillaries, and across cell membranes.