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Parts of the nephron
6
Glomerulus→ Bowman’s→ PCT→ Loop→ DCT→ Collecting duct
Renal corpuscle includes
Glomerulus + Bowman’s capsule
What filters blood
Glomerulus
What collects filtrate
Bowman’s capsule
What does the PCT do
most reabsorption (65%)
What concentrates urine
loop of henle
what regulates electrolyte and acid-base balance
DCT
ADH acts here
collecting duct
Juxtaglomuerular apparatus =
macula densa + JG cells → Renin
Best measure of kidney function?
Normal range for this?
GFR
90-120
Tubular reabsorption =
urine → blood
Tubular secretion =
blood→ urine
Too much glucose = glycosuria
transport maximum
increased BP
increase sodium
increased water
=
RAAS
What keeps water
ADH
Lose sodium and water
decreased BP
=
ANP/BNP
What makes RBCs
EPO
What increases calcium absorption
Active vitamin D
Best lab for kidney function
Creatinine
What increases with dehydration
BUN
Normal urine labs
No protein, blood, or glucose