Lateral view of the abdominal region illustrating the external abdominal oblique muscle and its bony attachments.

Lateral schematic illustration showing the relationships of left renal vein and third part of duodenum to aorta and superior mesenteric artery.

Lateral view of the abdominal region illustrating the internal abdominal oblique muscle and its bony attachments.

Contributions of the three flat abdominal muscles to the inguinal canal.

Great vessels, kidneys, and suprarenal glands are seen in an anterior view. Preitoneum and all digestive organs have been removed.

Posterolateral view of the posterior wall. External oblique muscle is incised and turned laterally, and the internal oblique muscle is incised and turned medially exposing the subcostal (T12) and iliohypogastric nerve (L1). Square in insert indicates or

Contributions of the three flat abdominal muscles to the inguinal canal.

Exercise, abdominal laterals