Structure contained within rectus sheath are all except: (A) Internal thoracic aery, (B) Superior epigastric aery, (C) Inferior epigasbric aery, (D) Rectus abdominis
Answer is A. 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