Lecture 15: Posterior Abdominal Wall

Question 1

Posterior Abdominal wall Consists of:

Answer 1

1. 5 lumbar vertebrae
2. abdominal wall and leg muscles
   a) Psoas maj&min
   b) QL
   c) Iliacus
   d) Transversus abdominis
   e) Internal oblique
   f) External oblique
3. respiratory diaphragm
4. thoracolumbar fascia
5. lumbar nerve plexus
6. fat muscles vessels & lymph nodes
7. fascia
8. peritoneum

Question 2

Blood vessels

Answer 2

1. Abdominal aorta parietal branches
   a) subcostal artery
   b) lumbar arteries (5 pairs)
   c) median sacral artery (unpaired)
2. IVC
3. Azygos/hemiazygos veins

Question 3

Nerves

Answer 3

1. subcostal nerves
2. lumbar plexus nerves (L1-5)
3. sympathetic trunks