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Urinary System 3
Terms in this set (44)
Fluid filtered from the ___ into the ____ passes through __ layers of the glomerular membrane.
During glomerular filtration almost everything that can be ___ from the blood is. ____ is formed.
anything that is ___ or ___ will most likely get filtered out and goes into the ____.
small or polar
involves the transfer of substances from tubular lumen into peritubular capillaries
tubular reabsorption is highly _____ and a ___ process.
Tubular reabsorption involves ?
Reabsorbed substances must cross what?
Must leave tubular fluid by crossing?
luminal membrane of tubular cell
must pass through ____ from one side of tubular cell to the other.
must cross ___ of the tubular cell to enter ____ fluid.
must ___ through __ fluid.
must penetrate ____ to enter ___.
Anything that is secreted has to cross same 5 barriers but in what direction?
Tubular reabsorption what two types?
-no ___ required for the substance's ____,
-occurs down __ or ___ gradients
-energy , net movement
-electrochemical or osmotic
-occurs in any one of the steps in ____ transport of a substance requires ___.
-movement occurs against ___ gradient.
one of the big things that is needed and gets reabsorbed is ?
body uses a great deal of what to absorb sodium?
About 2/3rds of sodium gets reabsorbed in ?
Na/KATPase in ___ membrane is needed to pump ___ out.
what % of the kidneys energy is used to reabsorb sodium?
Na+ is not reabsorbed in what?
descending limb of the loop of henle
water follows reabsorbed sodium by ___ which affects blood ___ &___.
Plays role in reabsorbing glucose, amino acids, H2O, Cl, and urea?
Proximal tubule % of Na reabsorption
plays critical role in kidneys ability to produce urine of varying concentrations?
ascending limb of the loop of henle
Ascending limb of the loop of henle % of Na reabsorption ?
variable and subject to hormonal control; plays role in regulating ECF volume
distal and collecting tubule
distal and collecting tubule % of Na reabsorption?
Glucose and amino acids are reabsorbed by ?
sodium-dependent , secondary active transport
One thing moving down its concentration gradient lets something else go against its concentration gradient
secondary active transport
re-absorption of water in to the blood surrounding the __ tubule ___ the concentration of urea ___ the tubule, as water is lost from the tubule. This produces a concentration gradient for ___ form the tubule into the ___ fluid.
Transfer of substances from peritubular capillaries into the tubular lumen.
tubular secretion involves ?
trans-epithelial transport (reverse steps)
Kidney tubules can selectively ___ substances to the filtrate,
getting everything you need for the blood
getting ride of everything you do not want in blood
3 most important substances secreted into the tubules
important in regulating acid-base balance
H+ is secreted in __,___,&___ tubules.
proximal , distal, collecting
maintain normal membrane excitability in muscles and nerves.
K+ is secreted only in ?
distal and collecting tubules
drugs, toxins, poisons
organic ions secreted only in ?
THIS SET IS OFTEN IN FOLDERS WITH...
Urinary System 1
Urinary System 2
Urinary System 4
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