PATHOLOGY MCQ
URINARY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
From capillary blood to tubular blood
|
|
|
From proximal convoluted tubule to glomerulus
|
|
|
From proximal convoluted tubule to distal convoluted tubule
|
|
|
From tubular fluid to capillary blood
|
Detailed explanation-1: -Tubular secretion is the transfer of materials from peritubular capillaries to the renal tubular lumen; it is the opposite process of reabsorption. This secretion is caused mainly by active transport and passive diffusion. Usually only a few substances are secreted, and are typically waste products.
Detailed explanation-2: -Hydrogen, creatinine, and drugs are removed from the blood and into the collecting duct through the peritubular capillary network.
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.