Anterolateral abdominal wall Flashcards
what layers make up the abdominal wall
superficial fascia
muscle layers and deep fascia
extra-peritoneal fascia
parietal peritoneum
what is camper’s fascia
continuation of fatty layer of superficial fascia
inferiorly blends w/ superficial fascia fascia of thigh and perineum
what happens to camper’s fascia in males
continues into fascia of penis, loses fatty layer and fuses w/ deeper layer of superficial fascia to become dartos fascia of scrotum
what happens to camper’s fascia in females
retains fatty layer and contributes to fascia of labia majora
what is scarpa’s fascia
a thin, membranous fascia
attaches to pubic symphysis and linea alba
what happens to scarpa’s fascia below the inguinal ligament
fuses with fascia of thigh to form fascia lata
male contributions of scarpa’s fascia
fascia of penis, dartos facsia of scrotum and fundiform ligament of penis
female contributions of scarpa’s fascia
contributes to labia majora
attachments of external oblique
ribs 5-12
iliac crest
linea alba - midline
innervation of external oblique
anterior rami T7-12
attachments of internal oblique
ribs 9-12
pubic crest, pectineal line and inguinal ligament
innervation of internal oblique
anterior rami T7-12 and L1
attachments of rectus abdominis
xiphoid process and costal cartilages of ribs 5-7
to
pubic tubercle, crest and symphysis
innervation of rectus abdominis
anterior rami T7-12
describe the rectus sheath above the umbilicus
anterior wall - aponeuroses of external and internal oblique
posterior wall - aponeuroses of internal oblique and transverus abdominsis
describe the rectus sheath below the umbilicus
aponeuroses of all 3 muscle layers lie anterior to rectus sheath
posterior wall is transversalis fascia
what is the arcuate line
transition point of aponeurosis to more delicate fascia
what is contained in the lateral umbilical fold
inferior epigastric vessels
innervation of fascia and skin
anterior and lateral branches of 6-12 intercostal nerves
iliohypogastric nerve (L1)
origin of abdominal wall arteries
femoral (inferior epigastric) or internal thoracic (superior epigastric) arteries
venous drainage of abdominal body wall
towards axilla or femoral veins
arterial supply to rectus abdominis
superior and inferior epigastric
what artery is superior epigastric a branch of
internal thoracic
which artery is inferior epigastric a branch of
external iliac
detail the lymphatic drainage of this region
superficial
above umbilicus - axilla
below umbilicus - ingunal
deep
upper - parasternal
middle - lumbar
lower - external iliac
