This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Back region, Subject name: Anatomy
Which cervical veebra has lateral mass: 
Select and explain. 
A. Atlas, B. Axis, C. C5, D. C7
A: Atlas
Answer: A: Atlas 
Explanation: Lateral masses are the most bulky and solid pas of the atlas, in order to suppo the weight of the head. Each carry two aicular facets, a superior and an inferior. fig:- atlas C1