Question

Number of cranial bones present in human skull is
A) 8
B) 10
C) 12
D) 16

Answer 1

In the human skull bones are divided into cranial bones which form the cranium or the brain box, and facial bones which make up the face.

Complete answer:
Let us know a little about the human skeletal system before we find the correct answer. The human skeletal system basically forms the framework of the body. It is made up of bones and tissues which are associated with joints and cartilages.

The skeletal system is divided further into 2

1. Axial skeleton
2. Appendicular skeleton
   The human skull is made up of a total of 29 bones out of which only 8 are cranial bones. Therefore, this is the correct option.
   The rest 21 bones are - 6 auditory ossicles, 14 facial bones and one hyoid bone. The eight cranial bones are,

One ethmoid bone
One occipital bone
One frontal bone
One sphenoid bone
Two temporal bones
2 parietal bones

As, the human skull is made up of 8 bones, therefore, option B, C and D are incorrect.

Thus, the correct option is (A) 8.

Note: The axial skeleton is made up of a total of 80 bones and it consists,

Vertebral column - It includes 24 vertebrae bones, coccyx bone and sacrum bone
Skull - It includes 29 bones - 8 cranial bones, 14 facial bones, 6 auditory ossicles and one hyoid bone
Thoracic cage - It includes 25 bones which are present in the thorax region - 24 ribs and one breastbone