Structure contained within rectus sheath are all except
The rectus sheath is formed by the aponeuroses of the transverse abdominal and the external and internal oblique muscles. It contains the rectus abdominis and pyramidalis muscles. It can be divided into anterior and posterior laminae. image ref - researchgate.net
Internal thoracic aery
Superior epigastric aery
Inferior epigasbric aery
Rectus abdominis
Abdomen and pelvis