This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdominal Wall, Subject name: Anatomy
Medial border of Hesselbach's triangle is formed by: 
Select and explain. 
A. Linea alba, B. Linea semilunaris, C. Inferior epigastric artery, D. Conjoint tendon
B: Linea semilunaris
Answer: B: Linea semilunaris 
Explanation: Ans. (b) Linea semilunarisRef: Gray's 41st edn/1080-81; Keith L Moore clinical anatomy 4thed/ 193-4# HESSELBACH'S TRIANGLE* Medial border: Lateral margin the rectus sheath, also called linea semilunaris* Superolateral border: Inferior epigastric vessels* Inferior border: Inguinal ligament, sometimes referred to as Pouparts ligament.