This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vigina, Subject name: Gynaecology & Obstetrics
The angle of anteflexion occurs at the level of: 
Select and explain. 
A. Internal os, B. External os, C. Upper vagina, D. Cervix
A: Internal os
Answer: A: Internal os 
Explanation: Ref: Shaw's textbook of gynaecology, 15th ed. pg :8Explanation:The body of I he uterus is bent forwards on the cervix approximately at the level of internal os.This forward inclination of the uterus on the cervix constitutes ante flexion.