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urinary system
23 cards·by tiwright
kidney function
removes metobolic wastes from urea, regulates blood pressure by changing blood volume,
regulates ion balance in blood and RBC'S
what can urine tests detect
evidence of diabetes, evidence of kidney damage
how can you detect diabetes in urine?
insufficient insulin, glucose in blood, excess glucose in blood appears in urine
how can you detect kidney damage in urine?
blood in urine, protein in urine, fatty molecules in urine
what should be in urine?
H20, and metobolic wastes
discending limb in the convoluted tubule does what?
H20 recovery
assending limb in the convoluted tubule does what?
salt recovery controlled through the hormone aldesterone
how is aldosterone inhibited?
caffiene
vasa Recta
recovered H20, salts, nutrients return to circulation
what do the collecting tubules do?
recovery of H20 under controll of hormone ADH
how is ADH inhibited?
alcohol
water and solutes not recovered by nephron
water and solutes
variable kidney function regulates what?
blood pressure
what happens if blood presssure is too low?
reduced kidney filtration
what is the response for (low blood pressure) reduced kidney filtration?
vasoconstriction- increased ADH and aldosterone
what is the response if blood pressure is too high in kidney?
decrease blood pressure and volume by ANF. OPPOSITE OF VASCONSTRICTION!
diuretics
any substance that produces high volume of dilute urine. administration of these is the
treatment for hypertension
hypertension
High blood pressure is said to be present if it is persistently at or above 140/90
hypertension can increase the risk of...
stroke, anuerysm, and heart attack
kidney stones
may block urine flow if severe. most common is the result of uric acid
uric acid
formed by nucleotide metabolism and is insoluble in water
PSA
Prostate-specific antigen (PSA) is a protein produced by both cancerous (malignant) and
noncancerous (benign) prostate tissue.
Aspririn can...
Reduces inflammation and fever Reduces risk of certain cancers