96%(25)24 out of 25 people found this document helpful
This preview shows page 24 - 27 out of 34 pages.
Match the following renal blood vessels with their correct description.A) efferent arterioleB) peritubular capillaryC) glomerulusD) afferent arterioleE) vasa recta15) Constriction of this vessel by intrinsic or extrinsic mechanisms decreases glomerular filtration rate.Diff: 5 Page Ref: 51216) Substances that are reabsorbed from the proximal tubule enter this blood vessel.Diff: 4 Page Ref: 51217) Filtration occurs across this capillary bed.Diff: 3 Page Ref: 51218) After blood is filtered in the renal corpuscle, the blood continues moving through this blood vessel to another capillary bed.Diff: 3 Page Ref: 51219) This capillary bed dips down into the renal medulla with the loop of Henle.Diff: 3 Page Ref: 512Answers: 15) D 16) B 17) C 18) A 19) EMatch the cell type to its location or function.A) macula densa cellsB) podocytesC) granular cellsD) mesangial cells20) These are modified smooth muscle cells around the glomerulus that contract to decrease the surface area of the glomerulus available for filtration.Diff: 4 Page Ref: 51921) These are epithelial cells of Bowman's capsule that form part of the filtration barrier.Diff: 4 Page Ref: 51522) These cells of the afferent arteriole secrete renin.Diff: 4 Page Ref: 51223) These cells of the distal tubule secrete a paracrine in response to changes in the filtrate flow rate.Diff: 4 Page Ref: 512Answers: 20) D 21) B 22) C 23) A24
Match each of the following with the correct equation.A) renal blood flowB) filtration fractionC) excretion rateD) clearanceE) filtered load24) GFR/renal plasma flowDiff: 5 Page Ref: 51725) GFR × plasma concentrationDiff: 4 Page Ref: 51726) Excretion rate/plasma concentrationDiff: 5 Page Ref: 52627) Urine concentration × urine flow rateDiff: 5 Page Ref: 52728) (Urine concentration × urine flow rate)/plasma concentrationDiff: 5 Page Ref: 52729) (Clearance of PAH)/(1 - hematocrit)Diff: 5 Page Ref: 528Answers: 24) B 25) E 26) D 27) C 28) D 29) A25
18.4 Essay Questions1) The vasculature of the kidneys is quite unique in its organization. This organization has consequences for the control of the renal vasculature. Describe the vasculature of the kidneys, including the consequences of the high resistance of the efferent arteriole.