The majority of this tissue is matrix. Tendons connect muscle to bone. Ligaments connect bone to bone. Bone Microanatomy Cells of bone proper include osteocytes, osteoblast, and osteoclasts. Other cells found in bone include chondrocytes, nerve cells of the periosteum, blood cells in the marrow, and fat cells in yellow marrow of the diaphysis.
Osteocytes are bone maintenance cells and are found in bone spaces called lacunae.
These cells control mineral storage in bone tissue. Osteoblasts are bone forming cells that eventually become encased in secreted bone matrix and then differentiate to form osteocytes. These cells are very active during bone formation in a fetus and during childhood, and during fracture repair. Osteoclasts are bone destroying cells, important in bone remodeling during bone growth and during fracture repair and remodeling. The cartilage is then remodeled into bone in a similar fashion to the way that cartilage in the epiphyseal plates of growing bone is remodeled as bone grows.