Renal and Repro-Final things I should know Flashcards
(607 cards)
mesonephros
function as interim kidney for first trimester, later contributes to male genital system.
metanephros
permanent, first appears in fifth week of gestation, nephrogenetisis continues through 32-36 weeks
what is the uteric bud derived from
the caudal end to the mesonephric duct
what does the uteric bud give rise to
it gives rise to the ureters, pelvises, calyces, collecting ducts, fully canalized by tenth week.
what does the metanephric mesenchyme give rise to
it is where the uteric bud interacts with the tissue and the interaction induces differentiation and formation of glomerulus through to distal convaluted tubeless.
what is the uteropelvic junction and what happens to it
last to canalize and most common site obstruction with hydronphrosis- this is usually seen by the second trimester on ultrasound and if not, it is seen at birth with a large kidney and an enlarge kidney
vesicoureteral reflux
incomplete closure lead to dilation and chronic non-obstructive hydronehrosis and increased risk of infection
what poles of the kidneys fuse on horseshoe kidney
it is inferior poles that are fused.
what does the horseshoe kidney get stuck on
IMA
what are horseshoe kidneys associated with
hydronephrosis, renal stones, infection, chromosomal aneuploidy and sometimes cancer
unilateral renal agenesis
uteric bud fails to develp and induce differentiation of metanephrtic mesenchyme so complete absence of kidney and ureter
multicystic dysplasic kidney
uretic bud fails to induce differentiation of metanephric mesenchyme so nonfunctional kidney consisting of cysts and connective tissue.
duplex collecting system
bifurcation of uremic bud before it endter the metaphors, which creates a bifid ureter so vesicoureteral reflux and ureteral obstruction so increased risk of UTI
congenital solitary functioning kidney
condition of being born with only one functioning kidney. Asymptomatic with compensatory hypertrophy of contralateral kidney. anomalies in the contralateral kidney are common
fetal hydronephrosis
renal pelvis is highly compliant so if there is an abstraction it can cause hydronephrosis at the kick or narrowing of the proximal ureter at the uteropelvic junction. Can see it on ultrasound of a palpable mass and enlarged kidney in a child
which kidney is taken for transplant and why
the left is taken because of the longer renal vein
what is the renal blood flow
it is renal artery- segmental artery- interlobular artery- arcuate artery-interlobular arteries- afferent arterile–glomerulus- efferent arteriole- vasa recta-peritubular capillaries-venous outflow
what is the arriving after to the glomerulus and which is the one leaving
it is afferent and efferent
what does the ureter pass under
the uterine artery or under the vas deferens
what can damage the ureters
ligation of uterine or ovarian vessels can damage it causes obstruction or leak
pain and fever after a hysterectomy- what went wrong
one ureter is damaged and leading leading to fever and pain, but can still make urine because the other side is fine
what can plasma volume be measured by
it can be measured by radiolabelled albumin
extracellular volume can be measured by what
mannitol and inulin
what is the percent water per body weight
- 60% of total body water
- 40% is the ICF
- 20% is the ECF