Which cranial bone is called the "keystone" of the cranial floor because it articulates with every other cranial bone?
A)Occipital
B)Frontal
C)Ethmoid
D)Nasal
E)Sphenoid

Question

Quizplus · Accepted Answer

The sphenoid bone is considered the "keystone" of the cranial floor because it articulates with every other cranial bone. It also forms part of the walls of the orbit, the nasal cavity, and the middle cranial fossa.

Which Cranial Bone Is Called the "Keystone" of the Cranial