What Nerve Innervates Abdominal Wall

Major nerves to the anterolateral abdominal wall include the thoracoabdominal, lateral cutaneous, subcostal, iliohypogastric, and ilioinguinal nerves. The thoracoabdominal nerves are derived from T7-T11 and form the inferior intercostal nerves. These nerves run along the internal obliques and the transversalis muscles.

Which nerve roots provide sensation to the abdominal wall?

At the mid-axillary line, the intercostal nerves and subcostal nerve give off lateral cutaneous branches, with T7 and T8 predominantly supplying sensation to the inferior lateral thoracic wall and T9 to T12 predominantly supplying sensation to the lateral abdominal wall.

What nerve controls abdominal muscles?

The abdominal wall nerves control the majority of these core muscles and provide feeling to the abdominal skin and groin areas. Four major nerves are largely responsible for these actions, including the thoraco-abdominal (T7-T11), subcostal (T12), iliohypogastric (T12-L1), and ilioinguinal (L1) nerves.