Which of the following type of bone cells have the charecteristic MOST abundant rough endoplasmic reticulum, golgi and secretory granules?: (A) Osteocytes, (B) Osteoprogenitor Cells, (C) Bone lining cells, (D) Osteoblasts
Answer is D. Osteoblasts have the cytological characteristics of protein-secreting cells: RER, Golgi and secretory granules. Located near the forming bone surface, these cells are specialized for the synthesis and secretion of both the organic and inorganic components of bone matrix.