This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
Cervical carcinoma arises from 
Select and explain. 
A. Squamocolumnar junction, B. Isthmus, C. Cervical anterior lip, D. Internal os
A: Squamocolumnar junction
Answer: A: Squamocolumnar junction 
Explanation: Carcinoma of cervix arise from the Squamocolumnar juction Vagina and Ectocervix are covered by stratified squamous epithelium and the endocervix is covered by columnar epithelium. The two meet at squamocolumnar junction which is dynamic. Reference : Textbook of Gynaecology; Sheila balakrishnan; 2nd edition; Pg no:257