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
Deep inguinal ring is formed in: 
Select and explain. 
A. Transversus abdominis, B. Transversalis fascia, C. External oblique aponeurosis, D. Internal oblique aponeurosis
B: Transversalis fascia
Answer: B: Transversalis fascia 
Explanation: Ans. B Transversalis fascia* Deep inguinal ring is an oval opening formed in transversalis fascia.# It lies about 0.5 inch (1.3 cm) above inguinal ligament midway between anterior superior iliac supine and symphysis pubis.# Medial to deep inguinal ring is inferior epigastric vessels.Extra Mile# Superficial inguinal ring: A triangular shaped opening in the aponeurosis of external oblique muscle and lies immediately above and medial to pubic tubercle.