Retroperitoneal structures: kidneys and ureter Flashcards
what does retroperitoneal mean
a structure that lies posterior to the parietal peritoneum - held against the body wall with one surface covered by peritoneum and one surface in contact with the body wall
what is a primary retroperitoneal structure
formed on the body wall during development and maintain this relationship with body wall in adult form
give 4 examples of primary retroperitoneal structures
kidneys
suprarenal glands
vessels (aorta, IVC)
nerves
what are secondary retroperitoneal structures
develop out with the peritoneum but become covered by peritoneum by end of development and seen that way in adult form
give 5 examples of secondary retroperitoneal structures
most of duodenum pancreas ascending colon descending colon upper 2/3 rectum
the kidneys are primary/secondary retroperitoneal
primary
the pancreas is primary/secondary retroperitoneal
secondary
the ascending colon is primary/secondary retroperitoneal
secondary
the upper 2/3 of the rectum are primary/secondary retroperitoneal
secondary
the suprarenal glands are primary/secondary retroperitoneal
primary
the descending colon is primary/secondary retroperitoneal
secondary
most of the duodenum is primary/secondary retroperitoneal
secondary
what are the 4 components of the urinary system
kidneys
ureters
bladder
urethra
the hilum of the kidneys lies at what vertebral level
L1
which kidney lies slightly lower than the other and why
right kidney lies slightly lower due to large size of the liver
what are the anterior relations of the right kidney
suprarenal gland
liver
2nd part of duodenum
right colic flexure
the upper pole of the right kidney is protected by what posteriorly
rib 12
the right kidney lies on the surface of what
quadratus lumborum
where does quadratus lumborum pass between
muscle of posterior abdominal wall that passes between 12th rib and iliac crest
what are the posterior relations of the right kidney
diaphragm rib 12 psoas quadratus lumborum transversus abdominis subcostal nerve
the upper pole of the left kidney is protected posteriorly by what
ribs 11 and 12
what are the anterior relations of the left kidney
suprarenal gland spleen stomach tail of pancreas left colic flexure jejenum
what are the posterior relations of the left kidney
diaphragm ribs 11 and 12 psoas quadratus lumborum transversus abdominis subcostal nerve
describe the gross appearance of the kidney
red-brown
smooth outer capsule
10-12cm long
6-8cm wide
what is found at the renal hilum
renal artery
renal vein
renal pelvis that becomes ureter
(also lymph and sympathetic fibres)
what are the most posterior structures of the hilum
renal pelvis that becomes the ureter
is variation of the renal arteries or veins common
variation of veins is rare, but renal artery variation is relatively common
what is the name of an extra arterial vessel that enters the kidney outwith the hilum
supernumerary renal artery
how is a supernumerary renal artery formed
non-regression of vessels during development
what lies under the capsule of the kidney
paler cortex
what is found in the cortex
glomeruli
what is below the cortex
darker medulla
what is contained in the medulla
loop of henle
collecting ducts