NAME

Question types


Start with


Question limit

of 17 available terms

Advertisement Upgrade to remove ads
Print test

6 Written questions

6 Multiple choice questions

  1. this is the separation of wastes from body fluids and eliminating them; by four systems:
    respiratory, itegumentary, digestive, urinary.
  2. 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.
  3. Heart>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
  4. 200ml of urine will still activate stretch receptors. this inhibits sympathetic neurones - relaxing internal sphincter; while stimulating parasympathetic neurones - stimulating detrusor muscles
    The external urethral sphincter is under voluntary control
  5. the generation of a salinity gradient allows the collecting duct to concentrate urine, also helped by electrolyte reabsorption
  6. Filtration pressure:
    Glomerular filtration is governed by the same pressures that determine filtration in the other blood capillaries.
    -golmerular hydrostatic pressure (blood pressure) ~60mmhg
    -glomerular osmotic pressure (~32mmhg) opposing filtration
    -capular hydrostatic pressure (~18mmhg) exerted by fluids in capsule
    -capsule colloidal osmotic pressure ~0mmhg

5 True/False questions

  1. explain how the collecting duct and antidiuretic hormone regulate the volume and concentration of urineADH increases water reabsorption's thereby decreasing urine volume.
    The collecting duct concentrates urine, water is reabsorbed in the medulla, 4x deep in the medulla

          

  2. Name, locate and describe the organs of the urinary systemthis is the separation of wastes from body fluids and eliminating them; by four systems:
    respiratory, itegumentary, digestive, urinary.

          

  3. Name the major nitrogenous wastes and identify their sourcesHeart>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

          

  4. Trace the flow of fluid throughout the renal tubeless, and each functionRenal corpuscle:
    -the glomerulus produces filtrate
    -proximal convoluted tubule
    -Descending limb of the nephron loop active transport of salts
    -ascending limb of nephron loop
    -Distal convoluted tubule
    -collecting duct receives filtrate from many DCTs
    -papillary duct merges collecting duct together

          

  5. Describe how the renal tubeless reabsorb useful solutes from the golmerular filtrate and return them to the bloodNaCl electrical gradient
    glucose - co-transported by sodium glucose transport proteins, diffusion
    nitrogenous wastes - diffusion
    other electrolytes - solvent drag
    water - aqua porins

          

Create Set