Urinary System 2: Ureters, Bladder, & Urethra Flashcards
PCT is the 1st
segment of the renal tubule
Where Does the PCT begin?
at the urinary pole of the glomerulus
Where does a majority of glomerular flitrate get resorbed?
PCT
70%
PCT is very very
convoluted
what are the name in order of the parts of the Loop of Henle?
- Pars recrta (thick)
- thin descending
- thin ascending
- thick ascending limb
The thin portion of the loop of Henle has
squamous epithieum
The thick parts of the Loop of henle has
cubodial epitheilum
What wraps around the loop of henle?
Vasa recta
is parallel to
Loope of henle serves to create
high osmotic pressure in the renal
medulla
The loop of Henle creates high osmotic pressure in the renal medulla via the
counter-current multiplier system
The loop of henle counter-current multiplier system hel to create
hypertonic urine
excretion of excess solute
The bulk of the loop of henle extends into the
medula
In juxtamedullar nephorns thin limbs are
long
in cortical neprhons thin limbs are
short
Pars recta has a
brush border
There is a _________ extracellular Na in the medulla
higher
Countercurrent multiplier funciton is to
to generate high osmotic pressure in ECF of renal medulla
How does the Countercurrent multiplier generate hgih osmotic pressue inthe ECF
via Na-K pump in thick acsending
The vasa recta arises form
efferent arterioles of
juxtamedullary
nephrons
Distal convoluted tubule continuation of
thick ascending
limb of Loop of Henle
Where is the DCT located
in the cortex
DCT has cuboidal epithelium but
lacks brush border
DCT is Responsible for
- active resorption of Na & Cl
- coupled with secretion of H & K ions
What are the two cell types of the DCT?
- prinicpal cells
- intercalated cells
prinicpal cells resorb
Na & water
prinicpal cells secrete
K
