T-17 Urogenital development Flashcards
What filters blood in the kidneys
the glomeruli
Order of urine collection
Minor calyx-> major calyx-> renal pelvis
Where is the bladder found
posterior to the pubic symphysis
What connects the anterior surface of the bladder to the umbillicus
the median umbillical ligament
Where does the urethra begin
at the base of the bladder
What does the urethra end with
a perenial external opening
Urethra in female features
-short -wide lumen -external urethral orfice opens anterior to the vaginal opening within the borders of the labia minora
Urethra in male features
-long -narrow lumen -external urethral orfice opens at the distal end of the glans penis
What occurs at the beginning of kidney development
intermediate mesoderm is carried ventrally and loses connection with somites
How is the urogenital ridge formed
it is formed as longitudinal elevation of mesenchyme develops on either side of the dorsal aorta
What does the urogenital ridge consist of
a nephrogenic cord+ a gonadal ridge
Which part of the urogenital ridge gives rise to the urinary system
the nephrogenic cord
Which part of the urogenital ridge gives rise to the gonads
the gonadal ridge
What are the 3 sets of successive kidneys in the developing embryo
Pronephroi, mesonephroi, metanephroi
When does the pronephroi appear
early in the 4th week
Which week is this
week 5
Which weeks are these
weeks 6 and 7
