Question

Which of the following is not a cranial bone?

• A. Frontal
• B. Temporal
• C. Zygomatic
• D. Sphenoid

Answer 1

The correct option is C Zygomatic

• The skull is composed of two sets of bones. They are cranial (8) and facial (14), that totals to 22 bones. The cranial bones include 1 ethmoid bone, 1 frontal bone, 1 occipital bone, 2 parietal bones, 1 sphenoid bone, 2 temporal bones.
• Hence zygomatic bone is not a cranial bone. These bones also help form the lateral walls and floors of the orbits (eye).
  
• So, the correct answer is 'Zygomatic bone'.