Anterior abdominal wall

Question 1

What are the 9 regions, from upper right to lower left?

Answer 1

Right hypochondrion, epigastric, left hypochondrion, right flank, umbilical region, left flank, right groin, pubic region, left groin

Question 2

Which artery supplies the abdomen inferior to the umbilicus?

Answer 2

(Inferior?) Epigastric artery

Question 3

Once we pass inferior to inguinal ligament, the external iliac aa become which blood vessels?

Answer 3

Femoral arteries

Question 4

Which blood vessels run between the IO and TA?

Answer 4

The deep circumflex iliac vessels

Question 5

Which blood vessels enter the posterior rectus sheath at the arcuate line?

Answer 5

The inferior epigastric vessels

Question 6

The deep circumflex iliac and the inferior epigastric vessels are branches of what?

Answer 6

The external iliac

Question 7

Which two arteries branch from the internal thoracic artery?

Answer 7

The superior epigastric and musculophrenic arteries

Question 8

At which spinal level does the ilioinguinal nerve originate?

Answer 8

L1

Question 9

Which 3 muscles have medial aponeuroses that insert onto the linea alba

Answer 9

external oblique, internal oblique, and transversus abdominis

Question 10

What are the 9 layers (from superficial to deep) of the anterolateral wall of the abdomen?

Answer 10

1. Skin
2. Camper’s fascia
3. Scarpa’s fascia
4. External oblique
5. Internal oblique
6. Transversus abdominis
7. Transversalis fascia (endo-abdominal fascia)
8. extraperitoneal fat
9. Parietal peritoneum

Question 11

The rectus sheath envelops which muscles

Answer 11

rectus abdominis and pyramidalis mm