What are the major components of the axial skeleton?

3. Compare & Contrast: Briefly discuss how these concepts are alike and different.a. Foramen vs. Process
b. Classified vs. Unclassified Bones
c. Periosteum vs. Compact Bone
d. Atlas vs. Axis
4. Short answer: Answer each of the following questions:a. What do you consider the most important function of the skeletal system and why?
b.
c. What is the purpose of the paranasal sinuses? List the four sinuses (bones they are named after).