The muscles of the abdomen, showing the semilunar fold of Douglas. Viewed from in front.

Muscles of the Abdomen

The muscles of the abdomen, showing the semilunar fold of Douglas. Viewed from in front.

The transversalis, rectus, and pyramidalis muscles.

Muscles of the Abdomen

The transversalis, rectus, and pyramidalis muscles.

A transverse section of the abdomen in the lumbar region showing abdominal muscles.

Transverse Section of the Abdomen

A transverse section of the abdomen in the lumbar region showing abdominal muscles.

Transition of the tendon of the right internal oblique into the sheath of the rectus.

Transition of the Oblique Muscle into the Rectus

Transition of the tendon of the right internal oblique into the sheath of the rectus.

The external oblique muscles

External Oblique Muscles

The external oblique muscles

The internal oblique muscles

Internal Oblique Muscles

The internal oblique muscles