Urinary System Flashcards
What are the organs of the urinary system?
- kidneys
- renal pelves
- ureter
- urinary bladder
- urethra
Is the kidneys intraperitoneally?
No, they lie in the retroperitoneal space
What two muscles are underlying the kidneys?
Posas major and quadratus lumborum
There is an indentation by the vertebral column that the kidneys lie in. What is it called?
Lumbar gutter
What is the renal sinus?
A cavity enclosed by renal parenchyma. It can be visualized after removing vessels, nerves, fat and renal pelvis. Projecting into the renal sinus are pyramidal elevations known as renal papillae.
What two distinct regions can you find in the kidneys internal structure?
Renal medulla and renal cortex
The renal medulla has what shapes?
Pyramidal
What creates the renal medulla?
Straight segments of renal tubules
The apices of renal medullary pyramids create what?
Renal papilla
What does the renal papilla have as epithelium?
Cribiform area produced by the openings of papillary ducts
What are the renal columns?
Extensions of the cortex between the medullary pyramids
What are medullary rays?
Continuations of the medullary substance radiating from the bases of the pyramids towards the capsule
What is the cortex corticis?
The cortical part containing the medullary rays
What is the cortical labyrinth?
The part of the cortex with the renal columns
Waste substances are carried to the kidneys by what artery?
Renal artery