Upper Urinary System Flashcards
Which species has lots of perirenal fat?
Sheep
Which species has lobed kidneys?
Cow/ox
Describe the position of the kidneys.
On posterior abdominal wall; retroperitoneal; T12-L2 vertebra
Which muscles protect the kidneys?
Quadratus lumborum and psoas major muscles
Where do the paired renal arteries arise from?
Aorta
Where do the renal veins drain into?
Caudal/inferior vena cava (left gonadal vein joins the left renal vein)
Which species have multilobar/multipyramidal kidneys?
Ox, dolphin, polar bear, otter
Which species have multipapillate kidneys?
Humans, pigs
Which species have unilobar/unipyramidal kidneys?
Dogs, horses, sheep
What tissue are ureters composed of?
Smooth muscle, lined with urothelium
Which embryological layer do the kidneys and ureter derive from?
Intermediate mesoderm
What are the stages of embryological development of the kidney/ureters?
Pronephros, mesonephros, metanephros (primordia of the permanent kidney)
