This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of the female genital tract, Subject name: Gynaecology & Obstetrics
[{'content': 'Uterine aery is a branch of \nSelect and explain. \nA. External iliac aery, B. Anterior division of internal iliac aery, C. Posterior division of internal iliac aery, D. Ovarian aery', 'role': 'user'}, {'content': "Answer: B \nExplanation: The uterine aery arises from the anterior trunk of the internal iliac (or hypogastric aery). Its course is at first downwards and forwards until it reaches the parametrium when it turns medially towards the uterus. It reaches the uterus at the level of the internal os, where it turns upwards, at right angles, and follows a spiral course along the lateral border of the uterus to the region of the uterine cornua. Here it sends a branch to supply the fallopian tube and ends by anastomosing with the ovarian aery.Reference: Shaw's Textbook of Gynecology; 16th edition; Chapter 1; Anatomy", 'role': 'assistant'}]