Summary
Summary renal systems
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- Institution
renal systems, urinary systems, nephrons, renal tubules, renal lobes
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Renalsystems
, Leith : Renal
system
( urinary
Renal system homeostasis ( removes makes hormones ( Renin, EP0, callit roll , )
function waste,
electrolyte balance regulates
osmoregulat.imHalftime
+ BP
pH + B volume
: +
,
,
kidney (filters blood), Ureter (moves urine to bladder), urethralrelease
700Mt
urine)
,
Bladder
,
-
ureter has
folds to stretch when bladder is full ,
bladder muscle (detrusor) Ñp%nd to
get urine which
gets
released
by urethral sphincter relax tdetrusor contracts
Mall sphincter ( smooth muscle ) , )
prostate gland enlarges as
age
so
effects peeing internal urethral external urethral
sphincter ( skeletal muscle thats under prostate gland
-
, ,
urethra
through penis to let urine + semen leave
Female -
urinary bladder (smooth muscles ,
external urethral sphincter Incertae muscle) , urethra is smaller in
females so easier
fears infection
can control bladder
(
peeing) • Iwa
Micturition -
release urine
by autonomic + somatic NS .
External urethral sphincter needs
voluntary control remain continent .
Full bladder makes 4 stretch
of
bladder receptor + send impulse to CNS , stops voluntary relax external sphincter control + hold bladder
" "" "" "" " "" " ""
"" " " """ " " " "
" ""
""
" " "" " " "
" " " " """ """ " "
release urine ) , inflammation / trauma ( irritate urine lining from ascending effects kidneys )
mucosa UT1 so
kidney Gross
Anatomy
-
( red + bean shaped , small bind ,
retro peritoneal on both sides vertebral column 12th rib , ,
left is
slightly higher
Lt R
aorta splits artery to
kidney leave to renal veins to heart
by
-
renal
merge vena cava .
Cortical
( 5- 6h1min ) BV
-
Kidney gets 120-25%1
resting CO
inter
oblar
has ureter walls lrmootn muscle) , urine
pushed by peristalsis of drainage system
carafes pelvis contraction
-
, ,
Renal
artery
-
renal
artery
+ vein splits to small BV that
goes
to renal column which splits kidney into lobes / sections Renal
rein / cÑy%É
Renal tubules
¥iÉ "
÷É;É
are in cortex major
-
§ SEE Ureter
5- 9- §
§ a
yce
✓ggm
-
s s s
Renal
tiitefiuid filters manna
EÉÉÉ É÷Éɧ rena .
" ""
renal corpuscle
-
-
Nephron -
cortex + medulla made of nephron .
Tubules + blood
supply is
nephron .
Urine made + out
of medulla to
colleges .
Finn
"mP¥raµm;g a. be
,
,
each
kidney has 1mi 11 nephron Renal corpuscle filters blood ( in cortex has bowman capsule) capsule medulla
which makes urine
glamorous
-
+
.
,
Juxta
cortex)
pyramid)
( beside medulla which
cortical nephron ( 851 in +
medullary nephron loop of henle extends into renal
-
,
EÉE,N§:!::÷÷
" :
nephron filters blood to waste urine
:*?÷
-
remove so makes
JGA-muuuorder.at .
*
.
÷ .
Capillary
m%FaFITmer-marahsememan.name
Renal Corpuscle
network
Glomerulus
glomerulus gets efferent arteriole surrounds double layered epithelial Cup
blood arteriole
from afferent blood drains to
-
so . aka
%Famaroufdapg.me
•
innwerraps around
simple squamous epithelium Glomerular capillaries
Bowman's capsule (visceral Filtered
glomerulus parietal) BF
through glomerulus + (Blood plasma) filtrate Bowman capsular space fluid then
flows to renal tubule has 3 parts
+ enters which :
. .
PCT loop of henle ( nephron loop loops medulla + has limbs, DCT
into renal
descending limbs +
ascending
-
,
layer 1
Filtration -
thin
capillary wall + simple squamous endothelium is
finestrated ( porous) [ but RBC + WBC + platelets are too
big to pass ]
finger like
layer 2 layer 3
extension
-
Basal lamina have
glycoprotein layer stops plasma proteins C- ve) Filtration slit mode
crossing of podocyte which has space between pedicels of visceral
-
ve . is
[ stops hit]
Bowman
capsule epithelium protein crossing by size of filtration not plasma
proteins
glomerulus filtration is start to ( water, pharma) Bowman capsule drains to renal tubule
Daily filtrate female 11504day ) 4804day)
-
urine
glucose made
make ions aa , . .
-
mate
, , ,
which is not all peed out so renal tubules does lots
filtration .
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