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11 Cards in this Set
- Front
- Back
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Where is the "tightest" tubule?
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The tightness of the tubule epithelium increases from the proximal tubule to the collecting duct.
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How are tubule cells connected?
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Gap junctions
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Where is ultrafiltrate formed?
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The nephron forms an ultrafiltrate of the blood plasma and then selectively reabsorbs the tubule fluid or secetes solutes into it.
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What is the main function of the renal tubules?
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To recover most of the fluid and solutes filtered at the glomerulus
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Where is the largest fraction of glomerular filtrate retrieved?
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Proximal tubule
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What does the loop of Henle participate in?
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it forms concentrated or dilute urine.
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Where is the fine control of NaCL and water excretion?
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Distal tubule and collecting duct system.
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Where are hormones exerting their main effects on elecrolyte and water excretion?
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distal tubule and collecting duct system.
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The kindey lacks ____________ fibers.
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parasympathetic. Sympathetic fibers regulate blood flow, GF and tubule reabsorption.
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What hormones do kidneys produce?
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renin, biologically active form of vD, Erythropoetin, prostaglandins, bradykinin.
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How do the ureters rpopel urine from the renal pelvis to the bladder?
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by peristalti waves conducted along a syncytium of smooth muscle cells
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