Question

Assertion :Sphenoid bone articulates with all the cranial bones Reason: Sphenoid bone is keystone bone of cranium

• A. A and R are true and R is correct explanation of A
• B. A and R are true and R is not correct explanation of A
• C. A is true R is false
• D. A is false R is true

Answer 1

The correct option is A A and R are true and R is correct explanation of A

Sphenoid bone is a prominent, irregular, wedge-shaped bone at the base of the skull. It has been called the 'keystone' of the cranial floor because it is in contact with all of the other cranial bones.

So, the correct option is 'A and R are true and R is correct explanation of A'.