Muscle origin
Internal surfaces of costal cartilages of 7-12th rib, thoracolumbar fascia, and anterior two thirds of iliac crest, and iliopectineal arch
Muscle insertion
Linea alba. Pubic crest and pectineal line of pubis through aponeurosis of internal abdominal oblique muscle
Muscle function
“Bracing” / compresses abdominal viscera and assisting on forced expiration (bilateral contraction). Trunk rotation (unilateral contraction)
Nerve innervation
T7-L1 (Lovett reactor C5-T4)
Primary muscle type
Tonic / Type I (65-75%)
Myofascial lines
None
Primary inhibatory muscles
Diaphragm both sides, Psoas major both sides, Piriformis,
Organ relationship (T2-L2, Sacrum, n. Vagus)
Related joints
Associated muscles
Manual and practical therapy strategies that will help you find the root cause(s) and achieve faster and better results with your clients.
Functional Rehab Academy is a part of:
Move2Peak Academy ApS, Denmark
contact@functionalrehabacademy.com