A Volkmann's Canal is located centrally in a Haversian System. Osteocytes are not capable of removing mineral from bone. Endosteal cells and osteoblasts are the same cells. Endosteal cells develop into osteocytes. Endosteal cells and osteoclasts are not related embryologically.
Blasts make bone, and clasts disassemble it.
Blood vessels and nerves. There is none. During intramembranous ossification, bone develops directly from mesenchyme, without going through a cartilage model. Rough endoplasmic reticulum. Classify the tissue.