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Phys #11.txt

  1. What are three main kidney balances?
    • Sodium
    • Potassium
    • Water
  2. What is the steady state amount of kidney urine balance?
    1100 ml
  3. What state is a person in if their urine flow is >1000 ml?
    Negative water balance
  4. What diseases can cause a Positive Water Balance?
    • Congestive Heart Failure
    • ADH (Salt retention)
    • excess steroids
  5. What is the function of the renal corpuscle?
    Filtration (but not proteins)
  6. What is the job of the proximal tubule?
    reabsorption (60-80%)
  7. Does the urine concentrate in the proximal tubule?
    No, osmotic gradient maintained
  8. In the distal tubule, what controls urine permeability?
    Vasopressin
  9. What nephrons concentrate urine: Cortical or Juxtaglomerular?
    JGA
  10. What cells in the nephron system release Renin?
    Granular (juxtaglomerular) cells
  11. What are the two capillary beds in the nephron system?
    • Glomerular
    • Peritubular:
    • - cortical
    • - vasa recta
  12. Are renal nerves sympathetic or Parasympathetic?
    Sympathetic
  13. What is the main SNS neuron: alpha or beta?
    Alpha
  14. Where is the alpha SNS receptor mainly found: efferent or afferent arterioles?
    Afferent
  15. What are the four components of renal function?
    • Glomerular filtration
    • Tubular secretion
    • Tubular reabsorption
    • Excretion
  16. In the JGA, what contracts the mesangial cells?
    ANG II
  17. What opposes constant SNS stimulation of the nephrons?
    PGE2 and PGI2
Author
kepling
ID
74335
Card Set
Phys #11.txt
Description
Phys #11
Updated

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