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MBBS QUESTION #10164
Question 1
The pterion is a clinically significant junction of the frontal, parietal, temporal, and sphenoid bones because a fracture here overlies which structure, risking a specific vascular injury?
  • Superior sagittal sinus
  • Anterior branch of the middle meningeal artery✔️
  • Cavernous sinus
  • Transverse sinus
Correct Answer Explanation
The pterion is the thinnest part of the lateral skull and directly overlies the anterior (frontal) branch of the middle meningeal artery, making it the most common site of arterial epidural hemorrhage after trauma.