DIG Muscles

Question 1

External abdominal oblique origin

Answer 1

Lower 8 ribs

Question 2

External abdominal oblique insertion

Answer 2

Outer lip iliac crest
Linea alba
ASIS
Pubic tubercle

Question 3

Internal abdominal oblique origin

Answer 3

Thoracolumbar fascia
Intermediate area iliac crest
Lateral 2/3 inguinal ligament

Question 4

Transverse abdominis origin

Answer 4

Thoracolumbar fascia
Inner lip iliac crest
Lateral 1/3 inguinal ligament
Lower 6 costal cartilage

Question 5

Transverse abdominis insertion

Answer 5

Linea alba
Pubic crest
Pectineal line

Question 6

Rectus abdominis origin

Answer 6

Pubic crest
Symphysis pubis

Question 7

Rectus abdominis

Answer 7

Xiphoid process 5th, 6th, and 7th
Costal cartilage

Question 8

Nerve supply of anterior abdominal wall muscles

Answer 8

Lower 5 intercostal and subcostal nerves
Internal and transversus additional L1 supply

Question 9

Rectus sheath formation 1/4

Answer 9

Anterior: EOA
Posterior: 5th, 6th, 7th costal cartilages

Question 10

Rectus sheath formation middle 2/4

Answer 10

Anterior:
EOA
Anterior lamina of IOA
Posterior:
Posterior lamina of IOS
TOA

Question 11

Rectus sheath formation lower 1/4

Answer 11

Anterior:
EOA
IOA
TOA
Posterior:
Fascia transversalis

Question 12

Rectus sheath contents

Answer 12

Rectus abdominis
Pyramidalis
Superior and epigastric vessels
Lower 5 intercostal and subcostal nerves and vessels

Question 13

Rectus sheath which wall is deficient?

Answer 13

Posterior wall upper and lower 1/4

Question 14

Rectus sheath lower border

Answer 14

Arcuate line

Question 15

Psoas major origin

Answer 15

Lumbar transverse processes
Bodies of T12 and all lumbar vertebrae with discs in between

Question 16

Psoas major insertion

Answer 16

Lesser trochanter

Question 17

Psoas major nerve supply

Answer 17

L2, 3, 4

Question 18

Psoas major relations anterior

Answer 18

Kidney
Renal vessels
Ureter
Caecum (right)
Descending colon (left)

Question 19

Psoas major relations posterior

Answer 19

Lumbar transverse processes
Lumber plexus
Lumbar arteries

Question 20

Psoas major relations lateral

Answer 20

Quadratus
Iliacus iliohypogastric
Ilioinguinal nerves

Question 21

Psoas major relations medial

Answer 21

Obturator nerve
Lumbosacral trunk
Sympathetic chain

Question 22

Iliacus origin

Answer 22

Iliac fossa

Question 23

Iliacus insertion

Answer 23

Lesser trochanter

Question 24

Iliacus nerve supply

Answer 24

Femoral nerve

Question 25

Quadratus lumborum origin

Answer 25

Iliac crest Iliolumbar ligament

Question 26

Quadratus lumborum insertion

Answer 26

Upper 4 lumbar transverse process and last rib

Question 27

Quadratus lumborum nerve supply

Answer 27

T12 L1 to L4

Question 28

Diaphragm origin

Answer 28

Xiphoid (sternal) Lower 6 costal cartilages (costal) Right and left crura + median 2 median and 2 lateral arcuate ligaments (vertebral)

Question 29

Diaphragm insertion

Answer 29

Central tendon

Question 30

Defects related to the diaphragm

Answer 30

Morgagni Bockdalek foramina

Question 31

Diaphragm nerve supply

Answer 31

Phrenic (M) Lower 6 thoracic nerves (S)

Question 32

Diaphragm relations Superior

Answer 32

Right and left lung and pleura Heart and pericardium

Question 33

Diaphragm relations inferior

Answer 33

Right and left liver lobes Right and left kidney and suprarenal

Question 34

Diaphragm openings with levels

Answer 34

1. IVC (T8): IVC Right phrenic nerve 2. Abdominal aorta (T12): Aorta Azygos vein Thoracic duct 3. Esophagus (T10): Esophagus Right and left gastric nerves