30 - Anterior Abdominal Wall & Inguinal Canal Laughty

Front 1

Level of iliac crest?

Back 1

LV4

Front 2

Level of iliac tubercle?

Back 2

LV5

Front 3

Location of Umbilicus?

Back 3

LV3-LV4

Front 4

4 planes and location in 9 region division of abdomen?

Back 4

2 midclavicular
1 subcostal (LV3)
1 transtubercular (LV5) - through iliac tubercle

Front 5

names of 9 regions?

Back 5

R/L hypochondriac, epigastric
R/L lumbar, umbilical
R/L ingual, hypogastric

Front 6

Dermatome over xiphoid process?

Back 6

T6

Front 7

Dermatome over umbilicus?

Back 7

T10

Front 8

Dermatome over inguinal ligament?

Back 8

L1

Front 9

cutaneous branches of L1?

Back 9

iliohypogastric and ilioinguinal

Front 10

lymphatic drainage above umbilicus?

Back 10

axillary nodes

Front 11

lymphatic drainage below umbilicus?

Back 11

superficial inguinal nodes

Front 12

2 layers of superficial fascia?

Back 12

Camper's layer (fat)
Scarpa's layer (membranous layer)

Front 13

Origin of external oblique?

Back 13

lower 8 ribs

Front 14

Insertion of external oblique (5)?

Back 14

linea alba,
pubic symphysis
public tubercle
anterior superior iliac spine
iliac crest

Front 15

Origin of internal abdominal oblique muscle?

Back 15

Iliac crest & inguinal ligament

Front 16

Insertion of internal abdominal oblique muscle?

Back 16

linea alba
costal margin
pubic crest
pectineal line

Front 17

Origin of transversus abdominis?

Back 17

inner surface of costal cartilage
transverse process of LV
Inguinal ligament

Front 18

Insertion of transversus abdominis?

Back 18

linea alba
pubic crest
pectineal line

Front 19

Origin of rectus abdominis?

Back 19

pubic crest

Front 20

Insertion of rectus abdominis?

Back 20

Ribs 5-7

Front 21

level of arcuate line?

Back 21

LV4

Front 22

layers on posterior side of abdomen (lower 1/4)?

Back 22

transversalis, extraperitoneal connective tissue, peritoneum

Front 23

contents of extraperitoneal connective tissue & where they come from?

Back 23

median umbilical ligament - remnant from fetal urachus
2 medial umbilical ligament - remnants of fetal umbilical arteries

most lateral are inferior epigastric vessels that form lateral umbilical folds

Front 24

indirect inguinal hernia?

Back 24

lateral to inferior epigastric vessels

Front 25

direct inguinal hernia?

Back 25

medial to inferior epigastric vessels

Front 26

supravesicular fossae?

Back 26

between median & medial umbilical folds

Front 27

medial inguinal fossae?

Back 27

between medial and lateral umbilical folds

Front 28

lateral inguinal fossae?

Back 28

lateral to lateral umbilical fold

Front 29

division of internal thoracic and orientation?

Back 29

musculophrenic - more lateral
superior epigastric - medial

Front 30

where is superior epigastric artery found?

Back 30

between rectus abdominus and posterior rectus sheath

Front 31

where are anterior rami found?

Back 31

between internal oblique & transversus abdominis

Front 32

branches of external iliac artery?

Back 32

inferior epigastric
deep circumflex iliac

Front 33

path of inferior epigastric?

Back 33

comes from external iliac; pierces rectus sheath at arcuate ligament; deep to rectus abdominis

Front 34

where is deep circumflex artery found?

Back 34

between internal oblique & transversalis abdominis

Front 35

abdominal branches of femoral artery & their differences?

Back 35

superficial epigastric - goes above inguinal ligament to umbilicus
superficial circumflex - goes parallel to inguinal

Front 36

how many lumbar arteries off the abdominal aorta?

Back 36

pairs

Front 37

2 special veins in abdominal wall & their information?

Back 37

thoracoepigastric - formed by lateral thoraric & superficial epigastric; collateral route between superior/inferior vena cava

paraumbilical - collateral route between portal and systemic circulation