THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -A Nephron. A nephron is the basic structural and functional unit of the kidneys that regulates water and soluble substances in the blood by filtering the blood, reabsorbing what is needed, and excreting the rest as urine.

Detailed explanation-2: -Each nephron is made up of a very small filter, called a glomerulus, which is attached to a tubule. As blood passes through the nephron, fluid and waste products are filtered out.

Detailed explanation-3: -The nephron The nephrons reabsorb as much water as is needed by the body to maintain the water balance. This keeps the blood plasma at the correct concentration to avoid water entering or leaving cells and causing damage by osmosis .

Detailed explanation-4: -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.