2.4 Posterior Abdominal Wall and Overview of the Pelvis Flashcards
What organs are secondarily retroperitoneal?
duodenum, pancreas, colon (portions)
What is the anterior boundary of the retroperitoneal space formed by?
parietal peritoneum
What is the lateral boundary of the retroperitoneal space formed by?
transversals fascia
What is the posterior boundary of the retroperitoneal space formed by?
thoracolumbar fascia and psoas fascia
What does renal fascia surround?
suprarenal glands, kidneys, ureters, major vessels, fat
Suprarenal glands are endocrine, and buried in …
perinephric fat
Outer cortex of suprarenal glands is?
endocrine
Where is the left kidney located?
11th & 12th ribs slightly superior to level of R kidney
Where is the right kidney located?
12th rib
Fat-filled … continuous (through hilum) with perirenal space
renal sinus
The large renal a. divides into …
segmental aa (five)
Between renal column are dark patches of … responsible for concentrating?
renal medulla (pyramids)
Collecting ducts in medulla merge at …
tip of pyramid (renal papilla)
What is the order of drainage following renal papilla?
minor calyces, major calyces (smaller #), renal pelvis, ureter
ureters course along …, and cross …, entering the posterolateral wall of bladder
lumbar vertebrae; external iliac arteries
… branch directly from aorta at the level of SMA.
renal arteries
Suprarenal glands supplied by …
3 sets of suprarenal arteries
Congenital compression of the L renal vein between SMA and aorta; can cause renal hypertension, swelling and pain in gonads (L gonadal v into L renal v)
Nutcracker syndrome
Lymphatics of kidneys drain into what lymph nodes and then into cisterna chyli?
Lumbar lymph nodes
Suprarenal glands function as modified …
sympathetic ganglia
Suprarenal plexus (preganglionic sympathetic fibers) derived from …
thoracic splanchnic nn and celiac ganglion
The renal plexus to the kidneys is derived from …
Least splanchnic n (via aorticorenal ganglia) and posterior vagal trunk
visceral afferents from kidneys (kidney stones) follow what spinal segments?
T11-L2
Sensory innervation from kidneys to what spinal levels?
T11-12
Sensory innervation from ureters to what spinal levels?
T12-L2
What is the origin of the quadratus lumborum m?
iliac crest
What is the insertion of the quadratus lumborum m?
12th rib, L1-L4
What is the innervation of the quadratus lumborum m?
ventral rami of T12, L1-L4
What is the action of the quadratus lumborum m?
lateral bending of trunk