Lecture 5: Posterior Abdominal Wall Flashcards
which bones comprise the posterior abdominal wall
- ribs 11 and 12
- lumbar vertebrae
- sacrum
- ilia
which muscles comprise the posterior abdominal wall
- diaphragm
- quadratus lumborum
- psoas major (and minor)
- iliacus
where are the hiatuses of the diaphragm
- T8 for IVC
- T10 for oesophagus
- T12 for aorta
( I ate ten eggs at 12 )
vascular supply of the diaphragm
superior and inferior phrenic vessels
nervous supply of diaphragm
- phrenic C3,4 and 5 for motor
- intercostal and subcostal for sensory
where do the quadratus lumborum extend to and from
from iliac crest to rib 12
function of the quadratus lumborum
- abdominal stability
- lateral flexion
neurovascular supply of the quadratus lumborum
lumbar vessels and nerves
where do the psoas muscles originate
lumbar vertebrae
where do the iliacus muscles originate
iliac fossa
where do the psoas and iliacus insert
lesser trochanter of the femur
vascular supply of the psoas and iliacus
lumbar vessels
nervous supply of the psoas and iliacus
femoral nerves
at what level does the aorta enter
T12
at what level does the IVC enter
T8
abdominal aorta branches
- coeliac T12
- sup. mesenteric L1
- inf. mesenteric L3
- lumbar
- renal and gonadal L2
- bifurcates into common iliac vessels at L4/5
above which size is an abdominal aortic aneurysm considered at significant risk of rupture
5.5
what provides somatic innervation of the posterior abdominal wall
- lumbar plexus
- sacral plexus
which nerves innervate the suprarenal glands
- greater, lesser and least splanchnic nerves
- which synapse at the coeliac and aorticorenal ganglion
where would you feel referred pain from the stomach
T5-T9
where would you feel referred pain from the appendix
T10
where would you feel referred pain from the gallbladder
T7-T9
where would you feel referred pain from parietal peritoneum involvement
C3, 4
