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Anatomy - Thorax and Abdomen > Posterior Abdominal Wall > Flashcards

Flashcards in Posterior Abdominal Wall Deck (7)
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What are the paired visceral branches of the abdominal aorta?

Suprarenal, renal, and gonadal arteries

1

What are the unpaired visceral branches of the abdominal aorta?

Celiac trunk, superior mesenteric artery, and inferior mesenteric artery

3

What is the unpaired parietal branch of the abdominal aorta?

Median sacral artery

4

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

5

Iliacus

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

6

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

7

What are the paired parietal branches of the abdominal aorta?

Inferior phrenic and lumbar arteries