Alveolar Bone is Composed of All of the Following EXCEPT

Question

Alveolar bone is composed of all of the following EXCEPT one.Which one is the EXCEPTION?
A) Collagen
B) Intercellular substance
C) Apatite crystals
D) Lamina dura

Accepted Answer

A fine distinction,the lamina dura is a location within bone,not a component of bone.The lamina dura is defined as the edge of the alveolar bone,which appears radiographically as a thin radiopaque (white)border of the interdental septum situated adjacent to the periodontal ligament and alveolar crest.Bone has many components,including the remaining selections in the question.Other vital components of bone include calcium,phosphate,and carbonates.