Anatomy Posterior wall of Rectus sheath below Arcrate line is formed by A Posterior lamina of Internal oblique aponeurosis and Transverse abdominis aponeurosis B Fascial transversalis C Transverse abdominis aponeurosis and Fascia transversalis D Internal oblique Aponeurosis 💡 Explanation Posterior wall of Rectus sheath below Arcrate line is formed by ✓ Correct Answer: B. Fascial transversalis