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6 Written questions

6 Multiple choice questions

  1. yellow due to urochrome, smells as bacteria degrade urea to ammonia, density range 1.001-1.028 mmhg, ranges osmolarity 50mOsm/L to 1,200mOsm/L. pH range 4.5-8.5, usually 6.0 with the 95% water, 5% solutes urea, NaCl, KCl, creatinine, uric acid.
  2. ADH increases water reabsorption's thereby decreasing urine volume.
    The collecting duct concentrates urine, water is reabsorbed in the medulla, 4x deep in the medulla
  3. Ureters transport urine to urinary bladder. the Bladder stores the urine until full; the urethra is the the exit by which urine leaves the body.
  4. 1-glomerular filtration - driven by filtration pressure
    2-Tubular reabsorption and secretion - movetment of solutes and water in and out for the tubules
    3-water conservation regulation of the volume concentration of urine
  5. overview, six organs
    kidneys, ureters, urinary bladder, and urethra
  6. Glomerular filtration rate is controlled by adjustors glomerular blood pressure:
    autoregulation - mycogenic mechanism (keeps flow constant)
    macula densa on DCT monitors flow (increase of arterioles bp causes vasoconstriction of afferent arteriole)
    signals juxtamedullary cells to constrict (decrease of arteriole bp causes vasoconstriction of arteriole)
    -sympathetic control
    strenuous exercise or acute condition cause afferent arterioles to constrict, lower GFR and urine production, redirecting blood flow to visceral areas.
    -hormonal mechanisms
    rennin release entering chain of angiotensinogenII to vasoconstrictor vessels elevating blood pressure.
    promotes water and NA reabsorption.
    Stimulates sensation of thirst.

5 True/False questions

  1. Name the major nitrogenous wastes and identify their sourcesprotein catabolism amino acids and NH2 which removed by the liver as uea, there is also uric acid and creatinin.
    Uric acid derives form nucleic acid catabolism.
    Creatininie derives from creatine phosphate catabolism

          

  2. Trace the flow of fluid throughout the renal tubeless, and each functionHeart>aorta>renal A>Segmental A>Interlobar A>arcuate A>interlobular A>Afferent arteriole>Glomerulus>efferent arteriole:
    1. Peritubular capillaries>interlobular vein
    2. Vasa recta>arcuate vein
    >arcuate V>interlobular V>renal V> Vena cava

          

  3. List the functions of the renal system in addition to grin formationprimary function: production and excretion of urine

    Other functions: blood plasma filtration, regulation of blood volume and pressure, regulation of body fluid osmolarity, secretion of renin and erythropoietin, regulate the bodes acid base balance, calcium homeostasis, glucogenisis.

          

  4. trace the flow of blood through the kidneyyellow due to urochrome, smells as bacteria degrade urea to ammonia, density range 1.001-1.028 mmhg, ranges osmolarity 50mOsm/L to 1,200mOsm/L. pH range 4.5-8.5, usually 6.0 with the 95% water, 5% solutes urea, NaCl, KCl, creatinine, uric acid.

          

  5. Describe who tubules secret solutes form the blood into the tubular fluidthe generation of a salinity gradient allows the collecting duct to concentrate urine, also helped by electrolyte reabsorption