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Styles 1. Which of the following vessels, if stimulated to vasoconstrict, would

ID: 3523055 • Letter: S

Question

Styles 1. Which of the following vessels, if stimulated to vasoconstrict, would cause increased filtration in the glomerular capillaries? (a) Afferent arteriole (b) Vasa recta (c) Efferent arteriole (d) Peritubular capillaries Which of the following CORRECTLY describes the flow of filtrate through the renal tubule? 2. (a) Glomerulus ? Distal convoluted tubule ? Ascending limb of nephron loop ? Descending limb of nephron loop ? Proxmal convoluted tubule Collecting duct Proximal convoluted tubule Descending limb of Proximal convoluted tubule Ascending limb of nephron Distal convoluted tubule > Descending limb of nephron (b) Glomerulus nephron loop 3 Ascending limb of nephron loop Distal convoluted tubule Collecting duct (e) Glomerulus loop -> Descending limb of nephron loop Collecting duct Distal convoluted tubule (d) Glomerulus loop ? Ascending limb of nephron loop ? Proximal convoluted tubule Collecting duct 3. Tubular occurs when certain substances (ie. ions, drugs) are removed from the bloodstream and placed back into the renal tubule (a) Elimination (b) Reabsorption (c) Secretion (d) Filtration

Explanation / Answer

1. The correct answer is - c. Efferent arteriole.

Additional Information:

Efferent arteriole moves blood from the glomerulas towards the body. It is smaller in diameter compared to afferent arteriole. It acts as the important determinants of glomerular filtration. It increases filtration in glomerular capillaries due to vasoconstriction and decreases filtration in glomerular capillaries in case of vasodilation.

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2. The correct answer is - b. Glomerulas - Proximal Convoluted tubule - Descending limb of nephron loop - Ascending limb of nephron loop - Distal Convoluted tubule - Collecting Duct.

Additional Information:

The filtrate enters into the glomerulas by the mechanism glomerular filtration , then it enters the renal tubules, here some part of the filtrate reabsorbed back into the capillaries via tubular reabsorption . The remaining part is then go to collecting duct and excreate as urine.