Muscles Origin/ Insertion Flashcards
External oblique
O: External ribs
I: linea alba, pubic tubercle, anterior half of iliac crest
Internal oblique
O: Thoracolumbar fascia, anterior 2/3 iliac crest, lateral half of inguinal ligament
I: Ribs, linea alba, pubis via conjoint tendon
Pyrimidalis
O: body of pubis, anterior to rectus abdomens
I: linea alba
Rectus abdominis
O: pubic symphysis, pubic crest
I: xiphoid process, costal cartilage
Transverse abdominis
O: internal costal cartilages, thoracolumbar fascia, iliac crest, lateral third of inguinal ligament
I: linea alba
Iliacus
O: 2/3 iliac fossa, anterior sacro-iliac ligaments
I: lesser trochanter
Psoas major
O: Lumbar vertebrae
I: lesser trochanter
Psoas minor
O: T12-L5
I: Pectineal line
Quadratus lumborum
O: inferior border of 12th rib
I: iliolumbar ligament, interal lip of iliac crest