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Grade 12th passBranch Ranking of IIT

Which of the following is not a cranial bone?
A
Frontal
B
Temporal
C
Zygomatic
D
Sphenoid

Profile image of mayank ranka
5 Years agoGrade 12th pass
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1 Answer

Profile image of ankit singh
5 Years ago
  • 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'.