Posterior Abdominal Wall Flashcards Preview

Anatomy - Thorax and Abdomen > Posterior Abdominal Wall > Flashcards

Flashcards in Posterior Abdominal Wall Deck (7)
Loading flashcards...

What are the paired visceral branches of the abdominal aorta?

Suprarenal, renal, and gonadal arteries


What are the unpaired visceral branches of the abdominal aorta?

Celiac trunk, superior mesenteric artery, and inferior mesenteric artery


What is the unpaired parietal branch of the abdominal aorta?

Median sacral artery


Psoas major

Origin: transverse processes of lumbar vertebrae and sides of vertebral bodies T12-S1 and intervening discs

Insertion: lesser trochanter of the femur

Innervation: lumbar plexus via anterior branches of L2-L4 nerves

Action: flex thigh, laterally flex vertebral column, and flex trunk when sitting



Origin: superior 2/3 of the iliac fossa, ala of sacrum, and sacroiliac ligament

Insertion: lesser trochanter of the femur, shaft inferior to it, and psoas major tendon

Innervation: femoral nerve (L2-L4)

Action: flex thigh and stabilize hip joint


Quadratus lumborum

Origin: tips of transverse processes and medial half of inferior border of 12th rib

Insertion: iliolumbar ligament and internal lip of the iliac crest

Innervation: anterior branches of L1-L4 and T12

Action: extend and laterally flex the vertebral column and fixes 12th rib during inspiration


What are the paired parietal branches of the abdominal aorta?

Inferior phrenic and lumbar arteries