Course of ventral nerve ramus L1 in abdominal wall.

Anterior view of coverings of spermatic cord and testis. Aponeurosis of external oblique muscle incised and reflected, revealing deeper internal oblique muscle Window in internal oblique muscle exposes deeper transversus abdominis muscle.

Rectum, anal canal and anal sphincter.

Anterior view of the right lower abdominal muscles. The external oblique muscle has been partially resected to reveal the internal oblique and aponeurosis. The conjoint tendon is shown formed by the arching fibers of the internal oblique and the transve

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

Posterior view of the abdominal region illustrating the internal abdominal oblique muscle and its bony attachments. Both sides of muscle are shown.

Adductor magnus muscle, posterior view.

Anterior view of the anterior ends of the inferior intercostal spaces. Portions of muscles have been dissected to reveal intercostal nerves. The image to the right indicates the orientation of 1. 18.

Stabilization of transverse or short oblique and short butterfly fractures by direct fixation with plates and screws.

Needle penetrating the muscle to gain access to the chest cavity.

Anterior view of the male inguinal region. Internal oblique muscle is reflected, and the spermatic cord retracted. Square in insert image of right pelvis indicates area shown in main image.

Lateral view of coverings of spermatic cord, layers incised and pulled back.

Internal oblique muscle