ANATOMY

Detailed explanation-1: -reabsorption. Reabsorption is the process by which the solutes and water are taken up from the intraluminal space of the proximal convulated tubule, the loop of Henle and the distal convulated tubule and are transferred to the blood vessels and capillaries by the cells lining these tubules.

Detailed explanation-2: -Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream. This process is known as reabsorption, because this is the second time they have been absorbed; the first time being when they were absorbed into the bloodstream from the digestive tract after a meal.

Detailed explanation-3: -Reabsorption is the movement of water and solutes from the tubule back into the plasma. Reabsorption of water and specific solutes occurs to varying degrees over the entire length of the renal tubule. Bulk reabsorption, which is not under hormonal control, occurs largely in the proximal tubule.

Detailed explanation-4: -On average, 180L of water is filtered by the kidneys daily. However, only 1.5-2L actually ends up being excreted as urine. This means almost 99% of the water filtered is either reabsorbed into the circulation or enters the interstitium.