What Is The Origin Insertion And Action Of The Rectus Abdominis?
What Is The Origin Insertion And Action Of The Rectus Abdominis? Origin Pubic symphysis, pubic crest Insertion Xiphoid process, costal cartilages of ribs 5-7 Innervation Intercostal nerves (T7-T11), subcostal nerve (T12) Blood supply Inferior epigastric and superior epigastric arteries; contributions from posterior intercostal, subcostal and deep circumflex arteries What is the action of the abdominals?