ANATOMY

Detailed explanation-1: -The regulation of the fluid-electrolyte balance in the body is due to three activities of the kidney-glomerular filtration, tubular secretion and tubular reabsorption. These three activities are carried out by the nephron.

Detailed explanation-2: -Interrelated Processes-DOE Directives, Guidance, and Delegations.

Detailed explanation-3: -Filtration involves the transfer of soluble components, such as water and waste, from the blood into the glomerulus. Reabsorption involves the absorption of molecules, ions, and water that are necessary for the body to maintain homeostasis from the glomerular filtrate back into the blood.

Detailed explanation-4: -Urine formation takes place in three steps namely, glomerular filtration, selective reabsorption and tubular secretion. In the first step, blood containing nitrogenous wastes is filtered through a tuft of capillaries called glomerulus. This is followed by selective reabsorption of glucose, amino acids etc.

Detailed explanation-5: -In renal physiology, reabsorption or tubular reabsorption is the process by which the nephron removes water and solutes from the tubular fluid (pre-urine) and returns them to the circulating blood.