Final answer:
Perichondrium is not related to bone because it is associated with cartilage and not directly part of bone structure or function unlike lacunae, osteocytes, and lamellae which are all related to bone.
Step-by-step explanation:
The answer to which of the following is not related to bone is c) perichondrium. This is because the perichondrium is related to cartilage, not bone. It is a layer of dense irregular connective tissue that surrounds the cartilage of developing bone; it's not directly part of the bone's structure or function. Other options like lacunae, osteocytes, and lamellae are all directly related to bone. Lacunae are small spaces that contain osteocytes, the bone cells. Lamellae are thin layers of bone matrix in which the bone cells and blood vessels are housed. Osteocytes, spread out in bone tissue within lacunae, are mature bone cells that maintain the bone matrix. Bones grow in diameter due to bone formation by osteoblasts and osteoclasts, which are cells originating from osteogenic cells, along with osteoprogenitor cells and osteocytes. Furthermore, endochondral ossification, a process where cartilage is replaced by bone, results in the formation of most bones, including long bones like the femur and humerus.