Anatomy General 883563e3 Pterion is: A Is a point of articulation of four skull bones B It is a point where 'bregma' and 'lamba' meet C It is region of the postero-lateral fontanelle merge D Lies deep to the zygomatic arch High-Yield Explanation Pterion is the area in the temporal fossa where 4 bones (frontal, parietal, temporal and sphenoid) adjoin each other forming an H-shaped suture.’