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
Superficial inguinal ring is present in aponeurosis of which muscle: 
Select and explain. 
A. External oblique, B. Internal oblique, C. Transversus abdominis, D. Rectus abdominis
A: External oblique
Answer: A: External oblique 
Explanation: Ans. A. External obliqueThe superficial inguinal ring is an anatomical structure in the anterior wall of the abdomen. It is a triangular opening that forms the exit of the inguinal canal, which houses the ilioinguinal nerve and the spermatic cord (in men) or the round ligament (in women). At the other end of the canal, the deep inguinal ring forms the entrance.It is found within the aponeurosis of the external oblique, above and superolateral to the pubic tubercle.