Anterior Abdominal Wall

Question 1

Layers of anterolateral abdominal wall (superficial to deep)

Answer 1

skin> superficial fatty layer > scarpa fascia > external oblique > internal oblique > transversus abdominus > transversalis fascia > parietal peritoneum

Question 2

Rectus sheath

Answer 2

aponeurotic sheath
Envelopes rectus abdominus m and pyramidalis m
Posterior and anterior layers

Relative to arcuate line

Question 3

Rectus sheath superior to arcuate line

Answer 3

Anterior layer: aponeuroses of EO and 1/2 IO

Posterior layer: aponeuroses of 1/2 IO, TA, and transversalis fascia

Question 4

Rectus sheath inferior to arcuate line

Answer 4

Anterior layer: Aponeuroses of EO, IO, TA

Posterior layer: Transversalis fascia

Question 5

Circumflex iliac a

Answer 5

branch of femoral artery

supplies region of inguinal ligament

Question 6

Epigastric a.

Answer 6

branch of femoral a

supplies abdomen inferior to umbilicus

Question 7

circumflex iliac v

Answer 7

drains to femoral v

drains region of inguinal ligament

Question 8

epigastric v.

Answer 8

drains to femoral v

drains to abdomen of umblicus

Question 9

Superficial vessels

Answer 9

Superficial circumflex iliac vein
Superficial epigastric vein
Femoral vein

Question 10

Deep circumflex iliac vessels path

Answer 10

Branch of external iliac

Runs between internal oblique and transversalis abdominis

Question 11

What does deep circumflex iliac supply?

Answer 11

inferior lateral abdominal mm.

Question 12

Superior epigastric vessels path

Answer 12

branch of internal thoracic (mammary)
Enters posterior rectus sheath lateral to sternum

Anastomoses with inferior epigastric

Question 13

What does superior epigastric supply?

Answer 13

Supplies rectus abdominus muscle

Question 14

Path of musculophrenic vessels

Answer 14

Branch of internal thoracic (mammary)

Runs along costal cartilages

Question 15

What does musculophrenic vessel supply?

Answer 15

Upper abdominal muscle and diaphragm

Question 16

T7, T8, T9

Answer 16

supply region above umbilicus

Question 17

T10

Answer 17

supplies umbilical region

@bellybutton

Question 18

T11, T12, L1

Answer 18

supply region below umbilicus

Question 19

Path of ventral rami T7-L1

Answer 19

Runs between internal oblique and transversus abdominus

Question 20

Location of inguinal region

Answer 20

inferior to lateral abdominal region
superior to thigh
medial to ilium
lateral to pubic bone

between ASIS and pubic tubercle

Question 21

Contents of inguinal region

Answer 21

inguinal ligament, canal, superficial and deep rings of inguinal canal, walls of canal

Question 22

inguinal ligament path

Answer 22

Folded inferior border of external oblique aponeurosis

ASIS to pubic tubercle

Question 23

What does inguinal ligament supply?

Answer 23

upper abdominal muscle and diaphragm

Question 24

Inguinal canal path

Answer 24

traverses anterior abdominal wall
3-5 cm long

parallel to inguinal ligament

Question 25

Male inguinal canal contents

Answer 25

Spermatic cord
Ilioinguinal n (L1)

Question 26

Female inguinal canal contents

Answer 26

Round ligament of uterus
Ilioinguinal n (L1)

Question 27

Rings of inguinal canal

Answer 27

Superficial ring

Deep ring

Question 28

superficial ring of inguinal canal

Answer 28

opening in external oblique aponeurosis

triangular opening lateral to pubic tubercle

Question 29

deep ring of inguinal canal

Answer 29

opening int transversalis fascia

subtle piercing later to inferior epigastric