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: Gynaecology & Obstetrics
Cervix carcinoma arises from: 
Select and explain. 
A. Squamocolumnar junction, B. Isthmus, C. Cervical lip, D. Internal os
A: Squamocolumnar junction
Answer: A: Squamocolumnar junction 
Explanation: Note:
• M/C site for carcinoma cervix = Squamo columnar junction
• M/C site for adenocarcinoma of cervix = Endocervix.