This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen & Pelvis, Subject name: Anatomy
Contents of rectus sheath are all except: 
Select and explain. 
A. Rectus abdominis, B. Superior epigastric artery, C. Inferior epigastric artery, D. Musculophrenic artery
D: Musculophrenic artery
Answer: D: Musculophrenic artery 
Explanation: Ans. D. Musculophrenic arteryThe rectus sheath, also called the rectus fascia, is formed by the aponeuroses of the transverse abdominal and the external and internal oblique muscles. It contains the rectus abdominis and pyramidalis muscles, superior and inferior epigastric artery and lower sic thoracic nerves. It can be divided into anterior and posterior laminae.