Embryology Flashcards
The urorectal septum divides the?
Cloaca into the bladder and rectum.
The Intermediate mesoderm gives rise to?
Nephros
Urinary ducts
Adrenal cortex
Sex cords of the gonads
The Lateral plate mesoderm gives rise to?
Stroma of gonads
The basic excretory units are?
flame cells
The functional kidney and gonads in fish and amphibians derive from?
The Mesonephros
What happens to the mesonephros in mammals, reptiles and birds?
Regresses in M/R/B to produce the gonads and adrenal cortex.
Mesonephric ducts become …….. in M/R/B?
ductus deferentes.
What does the Metanephros become in Mammals, reptiles and birds.
Kidneys in mammals, reptiles and birds.
Where do the functional kidney and gonads in fish and amphibians derive.
Mesonephros
Mesoderm forms?
Bowman’s capsules.
Proximal convoluted tubules, loops of Henle and distal convoluted tubules.
Ureteric duct forms?
Collecting ducts.
Renal pelvis.
Ureter.
The paramesonephric duct becomes?
ovarian ducts and uterus.
Adrenal cortex is derived from?
Some of the regressing mesonephric tubules.
Adrenal medulla is derived from?
neural crest cells.
