Final - Part 2 Muscles of Post Abdominal wall, lumbar plexus, abdominal aorta

what structures are contained in the abdominal aspect of the diaphragm

right/left crus

median arcuate lig

medial arcuate lig

lateral arcuate lig

what which vertebrae does the right crus of the diaphragm originate from? left?

l1-l3

l1-l2

which arcuate ligament attaches the right and left crus? what does this ligament form

median arcuate

border of aortic hiatus

what does the medial arcuate ligament connect? what structure does it pass over?

body of L1 to TP of L1

psoas major

what does the lateral arcuate lig connect? what structure does it pass over?

L1 TP to 12th rib

quadratus lumborum

what is the psoas sign

pain when thigh is extended passively or when patient flexes hip

a positive right psoas sign suggests what

appendicitis

the psoas minor muscle is present in __% of individuals

60

the psoas minor originates on bodies and IVD of what vertebrae

t12-l1

what is another name for the tendon of psoas major

iliopsoas tendon

t/f

the quadratus lumborum is inactive in forced expiration

false, active

which anterior primary rami form the lumbar plexus

L1,2,3 and part of 4

the iliohypogastric nerve (L1) is sensory or motor? to what structures?

sensory to skin of pubis and gluteal region

what structure does the ilioinguinal nerve (L1) accompany? Is it sensory or motor? to what?

spermatic cord

sensory to skin of scrotum and thigh

what are the 2 branches of the genitofemoral nerve (l1,L2)

genital branch and femoral branch

what does the genital branch supply

cremaster muscle

what does the femoral branch supply

skin over femoral triangle

which nerve of the lumbar plexus can be compressed by belts and really tight pants

lateral cutaneous nerve of the thigh (L2, L3)

what does the femoral nerve (L2,3,4) supply

muscles and skin of thigh

what does obturator nerve (L2,3,4) supply

muscles and skin of medial thigh

which anterior primary rami form the sacral plexus

L4-S4

how many branches does the abdominal aorta contain

9

which branches of the abdominal aorta are unpaired

celiac trunk

superior and inferior mesenteric arteries

median sacral artery

Which branches of the abdominal aorta are paired anterior/lateral

inferior phrenic a

middle suprarenal a

renal a

gonadal a

which branches of the abdominal aorta are posterior and paired

lumbar arteries

at what level does the abdominal aorta bifurcate? what are the bifurcations?

L4

r and l common iliac a.

is the thoracic aorta on right or left side? where does abdominal aorta lie? Superior and Inferior Vena Cava?

left

midline

right