HISTOLOGY
URINARY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
glomerular filtration
|
|
tubular reabsorption
|
|
glomerular reabsorption
|
|
tubular secretion
|
Detailed explanation-1: -What is glomerular filtration? Glomerular filtration is the first step in making urine. It is the process that your kidneys use to filter excess fluid and waste products out of the blood into the urine collecting tubules of the kidney, so they may be eliminated from your body.
Detailed explanation-2: -Thus far, the glomerular filter has been considered to act as a passive filter (similar to a coffee filter). An active filtration process, on the other hand, generates an additional force, which helps to clear the retentate from the filter continuously during the filtration process.
Detailed explanation-3: -Example-small ions like sodium and potassium pass freely but, haemoglobin and albumin have practically no permeability. Thus glomerular filtration is non selective as, though all substances must move through the glomerular membrane i.e. plasma and dissolved substances but no blood cells and large blood proteins.
Detailed explanation-4: -This process is referred to as ultrafiltration. Glomerular Filtration Rate or GFR is the rate at which the kidneys form the filtrate in a minute.