Flashcards in Physiology 2 Deck (16)
Which organ secreted erythropoietin?
(erythropoietin controls production of red blood cells)
Conversion of vitamin D into active form: what and where?
Kidney converts vitamin D into active form (calcitriol)
The functional unit of the kidney
Functional mechanisms of the kidney?
Which part of the kidney is the loop of henle situated?
The two types of nephron?
Inner layer of Bowman's capsule
Basic renal processes
What percentage of plasma that enters the glomerulus is filtered?
Only 20% of the plasma that enters the glomerulus is filtered
The other 80% is not filteres and leaves through the efferent arteriole
Rate of excretion
Rate of excretion = rate of filtration + rate of secretion - rate of reabsorption
Rate of filtration of X =
Rate of filtration of X = [X]plasma x GFR
Rate of excretion of X =
Rate of excretion of X = [X] urine x Vu
(Vu = urine flow rate)
Rate of reabsorption
Rate of reabsorption = rate of filtration - rate of excretion
What does it mean if rate of filtration < rate of excretion?
If rate of filtration < rate of excretion, net secretion of the substance has occured
How to calculate rate of excretion?
Rate of secretion = rate of excretion - rate of filtration