References External links – "Muscles of the anterior chest wall with the pectoralis major muscles removed." – "Thoracic Wall: The Anterior Thoracic Wall" – "Incision and reflection of the external abdominal oblique muscle." – "Incision and reflection of the internal abdominal oblique muscle." – "Anterior Abdominal Wall: The Rectus Abdominis Muscle" Muscles of the torso Spine flexors