nerve supply of abdominal wall

Introduction The anterior divisions of the 7th, 8th, 9th, 10th, and 11th thoracic intercostal nerves extend anteriorly from the intercostal spaces into the abdominal wall and are hence directed to as thoracoabdominal nerves/thoracoabdominal intercostal nerves. They obey a similar course as the upper intercostal nerves until they reach the anterior ends of the intercostal spaces….