Ant. Ab. Wall

Question 1

Arcuate Line

Answer 1

Above AL: Internal Oblique Aponeurosis (Post to RA)
Transversalis Ab. Aponeurosis (Post to RA)
Below AL: IOA (Ant to Rectus Ab)
TAA (Ant. To Rectus Ab)
*Below AL, RA contacts Transversalis Fascia

Question 2

Where do the nerve roots run?

Answer 2

Between Internal Oblique m. And transversalis ab. M.

Question 3

Subcostal n.

Answer 3

T12
Runs along inferior 12th rib
Sensory is superior to iliac crest

Question 4

Iliohypogastric n.

Answer 4

L1
B/w 2nd and 3rd muscle layers
Motor to IO/TA
Sensory to inguinal and hypogastric region

Question 5

Ilioinguinal n.

Answer 5

L1
Motor to lower IO/TA
Sensory to lower inguinal & anterior scrotum/labia (near medial thigh)

Question 6

Lumbar arteries

Answer 6

Off abdominal aorta

Question 7

Superficial epigastric a.

Answer 7

From femoral a.

Question 8

Superficial circumflex iliac a.

Answer 8

Off Femoral a.

Runs along inguinal l.

Question 9

Deep circumflex iliac a.

Answer 9

Off external iliac a.

Runs deep to inguinal l.

Question 10

Inferior epigastric a.

Answer 10

Off external iliac a.
Post. To Rectus Abdomoinis m. (But ant. To posterior layer of rectus sheath)
Anastomoses with superior epigastric a.

Question 11

Median umbilical fold

Answer 11

Obliterated urachus

Question 12

Medial umbilical fold

Answer 12

Obliterated umbilical aa.

Question 13

Lateral umbilical fold

Answer 13

Fold due to inferior epigastric a.

Question 14

Supravesicular Fossa

Answer 14

Gutter on either side of upper bladder

Question 15

Medial Inguinal Fossa

Answer 15

Gutter lateral to medial umbilical folds

Question 16

Lateral inguinal fossa

Answer 16

Gutter lateral to lateral umbilical folds