Multiple choice

Which one of the following is a junction of frontal, parietal, temporal and greater wings of sphenoid bone?

  1. Pterion

  2. Lambda

  3. Vertex

  4. Inion

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A Correct answer
Explanation

The floor of the temporal fossa is formed by the frontal and parietal bones, the greater wing of the sphenoid and the squamous part of the temporal bones. All four bones meet on each side at an H-shaped junction of sutures termed as the pterion.