GENERAL ANATOMY
URINARY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glomerular filtration
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tubular reabsorption
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glomerular reabsorption
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tubular secretion
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Detailed explanation-1: -Filtration is a non-selective process performed by the glomerulus using the glomerular capillary blood pressure. About 1200 ml of blood is filtered by the glomerulus per minute to form 125 ml of filtrate in the Bowman’s capsule per composition as that of plasma except the nitrogenous wastes.
Detailed explanation-2: -Renal Glomerular Filtration: Glomerular filtration is a passive, nonselective process in which hydrostatic pressure (approximately 10 mm Hg) forces fluids and small (<5 nm) hydrophilic particles through the glomerular membrane (Deen et al., 2001).
Detailed explanation-3: -Blood cells and large protein molecules are not filtered by the glomerulus. These molecules don’t pass through the blood capillaries since they are large in size. Therefore, they don’t enter the filtrate.
Detailed explanation-4: -The filtrate out from the glomerulus contains nitrogenous waste like ammonia, water, ions, etc., but is devoid of blood cells and major proteins.
Detailed explanation-5: -The kidneys filter the plasma in special filtration units-glomeruli-and thereby excrete low-molecular-weight waste products into the urine.