Layers of bone that occur at the external and internal surfaces of the bone are referred to as ________.
A) concentric lamellae
B) interstitial lamellae
C) circumferential lamellae
D) radial lamellae
E) longitudinal lamellae

Question

Quizplus · Accepted Answer

Circumferential lamellae are layers of bone that occur at the external and internal surfaces of bones. They help to resist twisting forces and contribute to the overall strength of bones. Concentric lamellae are layers of bone that make up the osteons or Haversian systems. Interstitial lamellae are fragments of concentric lamellae that are found between osteons. Radial lamellae are layers of bone that are oriented parallel to the surface of the bone in the periosteum. Longitudinal lamellae do not exist as a term in bone anatomy.

Layers of Bone That Occur at the External and Internal