Which of the following develops from the intermediate mesoderm in response to induction by the ureteric bud? prostatic utricle ductus deferens median umbilical ligament vagina labium majora seminal vesicle proper ovarian ligament urinary bladder clitoris ureter uterine tube testis kidney labium minora
Which of the following is a remnant of the allantois? prostatic utricle ductus deferens median umbilical ligament vagina labium majora seminal vesicle proper ovarian ligament urinary bladder clitoris ureter uterine tube testis kidney labium minora
The ureteric bud appears as an outgrowth from the: metanephric mass lateral plate mesoderm urogenital sinus allantoic duct mesonephric duct
Embryologically, each uriniferous tubule consists of two parts which become confluent at the junction of the: ascending limb of Henle's loop and the distal
convoluted tubule renal corpuscle and the proximal convoluted
tubule descending and ascending limbs of the loop
of Henle proximal convoluted tubule and the loop of
Henle distal convoluted tubule and the collecting
tubule
Which of the following are derivatives of the human pronephros? renal capsule Bowman's capsule both neither
Bilateral renal agenesis: is due to an endocrine imbalance is incompatible with life results when the kidneys fail to migrate out
of the pelvis is due to the absence of a paramesonephric
duct
Which of the following associations are correct? renal pelvis - ureteric bud ureter - ureteric bud urethra - urogenital sinus median umbilical ligament - urachus all of the above are correct
In the urinary system: the excretory units are outgrowths from
collecting ducts the bladder is a derivative of the urogenital
sinus the collecting ducts are derived from the
metanephric blastema a urachal fistula is a remnant of the cloaca
Exstrophy of the bladder: is frequently accompanied by hypospadias is due to a primary defect in endoderm
migration is due to a deficient growth of the urorectal
septum exposes the posterior wall of the bladder to
the outside
The urinary system in the human does NOT: develop from intermediate mesoderm develop from two different sources develop in close association with the genital
system have a functional pronephros during the 4th
week of gestation
In the urinary system: pressence of feces at the umbilicus of an
infant may be indicative of urachal fistula renal agenesis is most likely due to an
endocrine imbalance urine is excreted into the amniotic fluid
during the second half of pregnancy congenital polycystic kidney is most likely due
to a blockage of the urethra
Which of the following is NOT true concerning urinary system development: the epithelium of the male and female
urethra is of endodermal origin the distal convoluted tubules arise from the
metanephric blastema the collecting ducts arise from the ureteric
bud the glomerulus arises from the mesonephric
duct
The embryonic origin of tubuli recti of the kidney is: mesonephric tubules Wolffian duct ureteric bud or metanephric diverticulum metanephric blastema metanephric glomeruli
The calyces of the kidney arise from: endoderm mesoderm both neither
The structure dividing the cloaca into two parts is the: distal retention band transverse septum urogenital sinus urorectal septum cloacal membrane
Which duct is NOT associated with urinary system development? ureteric bud paramesonephric duct Wolffian duct pronephric duct mesonephric duct
Horseshoe kidney: involves splitting of the ureteric bud into a
horseshoe shape normally ascends to the L2 vertebral level involves the persistence of the mesonephric
kidney results from fusion of the caudal poles of the
kidneys