Urogenital System Development (Reynolds)-6 questions Flashcards
Arrange kidney types in order?
Three regions:
Pronephros; primitive amphibian
Mesonephros; fish
Metanephros; man
Mesonephric Duct has what duct? This duct shoots out duct known as?
Primary mesonephric ducts; ureteric bud
Metanephric blastema
cells surrounding metanephric duct (excretory portion)
Base of allantois forms
urinary bladder
Bilateral renal agenesis
no kidney!
Horseshoe kidney
Inapproriate fusion of Metanephric blastemal. Fuse to early won’t migrate well.
3 ureter due to?
They are documented to be functional. Why would this happen? 2 ureteric buds shooting out.
Urachal fistuala
Urine is leaked out of belly button. Leak out intestinal content in umbilicus.
Paramesonephric ducts stays in the?
female tubes (fallopian tubes and part of the uterus)—
Mesonephric ducts who has it?
Everyone! Mesenephric duct will form male specific tubes.
Mesenephric ducts stays in?
males—MM
The ureteric buds are derived from
Intermediate mesoderm –( mesonephrus)
The _____________________ persist in females and contribute to reproductive structures.
Paramesonephric ducts
The renal defect that involves inadequate amounts of urine production in utero is called ___________.
Oligohydramnios (aka Potter’s syndrome)
The renal defect that involves anomalous fusion of the metanephric blastema is called ___________.
Horseshoe kidney
The renal defect that involves a persistent allantois is called ___________.
Urachal fistula
Three Functions of the Urinary System
- Excretion
Removal of organic wastes from body fluids - Elimination
Discharge of waste products - Homeostatic regulation
Of blood plasma volume and solute concentration
Homeostatic Functions of the Urinary System
Regulates blood volume and blood pressure
—By adjusting volume of water lost in urine
—Releasing erythropoietin and renin
Regulates plasma ion concentrations
—Sodium, potassium, and chloride ions (by controlling quantities lost in urine)
—Calcium ion levels (through synthesis of calcitriol)
Epithelium of the kidney—glomerulus?
simple squamous epithelium.
Epithelium-Ducts (Proximal Convulated Tubule and Distal Convulated Tubule)
Simple cuboidal epithelium
Connective tissue in Renal Corpuscle/glomerulus?
Loose connected tissue.
Bowman’s capsule epithelium?
simple squamous epithelium
capillaries and other vessels of kidney epithelium?
simple squamous epithelium
Which duct has microvilli (PCT or DCT)?
Proximal Convulated Tubule
