This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Esophagus enters abdomen through 
Select and explain. 
A. Central tendon of diaphragm, B. Along aortic opening, C. Muscular part of diaphragm, D. Right crus
C: Muscular part of diaphragm
Answer: C: Muscular part of diaphragm 
Explanation: Oesophageal opening
-        Level- T10
-        At muscular portion derived from right crus
-        Structures transmitted

  Oesophagus
  Oesophageal branch of left gastric artery
  Vagus nerve