how is the concentration of blood influenced by selective reabsorption
how is the concentration of blood influenced by selective reabsorption
During the process of ultrafiltration the, useful substances are lost from the plasma along with excretory substances. The function of the nephron is to reabsorb substances that are of further use to the body and those that are required by the body to maintain the composition of the body fluids in a steady state. Most of the glucose, vitamins, amino acids, hormones are reabsorbed here. The uptake of sodium and other ions also takes place here. The uptake of these ions makes the solute potential of the tubular filtrate less negative and the and an equivalent amount of water leaves the tubular filtrate and passes into the blood capillaries by osmosis. Most of the solutes and water are removed at a fairly constant rate. As a reult, the filtrate in the tubule has the same water potential as the blood plasma in capillaries. We can conclude that selective reabsorption tries to restore the concentration of blood after ultrafiltration.
During the process of ultrafiltration the, useful substances are lost from the plasma along with excretory substances. The function of the nephron is to reabsorb substances that are of further use to the body and those that are required by the body to maintain the composition of the body fluids in a steady state. Most of the glucose, vitamins, amino acids, hormones are reabsorbed here. The uptake of sodium and other ions also takes place here. The uptake of these ions makes the solute potential of the tubular filtrate less negative and the and an equivalent amount of water leaves the tubular filtrate and passes into the blood capillaries by osmosis. Most of the solutes and water are removed at a fairly constant rate. As a reult, the filtrate in the tubule has the same water potential as the blood plasma in capillaries. We can conclude that selective reabsorption tries to restore the concentration of blood after ultrafiltration.
