Problem 8 Match each type of cell with its respective functionOsteoblastsOsteogenic cellsOsteoclasts+ OsteocytesA. Stem cells that give rise to most other bonecell typesB. Bone-forming cells that synthesize the softorganic matter of the bone matrixC. "Bone cells trapped in the bone matrix, in atiny cavities called lacunae"D. Bone-dissolving cells found in the bonesurface

The skeleton of the human body is composed entirely of the bones.. The architecture of bone is designed to offer the greatest amount of strength with the least amount of weight, hence bones are quite stiff. The cortex and the middle medullary zone of most bones are made up of thin, interconnected, and narrow bone trabeculae. The majority of bones also have a dense, hard outer shell of compact bone. The haemopoietic bone marrow can be found covering the area in the medullary bone that is located between the trabeculae. There are four distinct types of cells that make up bone: osteocytes, osteoblasts, osteoclasts, and bone lining cells. Progenitor cells which are the local mesenchymal cells, give rise to the osteoblasts, bone lining cells, and osteoclasts seen on bone surfaces. Osteocytes are generated when mononuclear blood-borne progenitor cells fuse, and they then spread throughout the interior of bones. A. Stem cells that give rise to most other cell types Osteogenic cells B. Bone-forming cells that synthesize the soft organic matter of the bone matrix Osteoblasts C. Bone cells trapped in the bone matrix, in a tiny cavity called lacunae Osteocyte D. Bone dissolving cells found in the bone surface Osteoclasts Osteoprogenitor cells, sometimes referred to as osteogenic cells, are stem cells that may be found in bone and play an important part in the process of bone formation and healing. Bone morphogenetic proteins (BMPs) are secreted and deposited into the extracellular matrix by osteoblasts, which are cells involved in the formation of bone. In cartilage and bone, the term "lacunae" refers to the minute spaces in the matrix that are home to osteocytes and chondrocytes, respectively. Lacunae are elongated gaps that can be found in the intercellular spaces of lamellae. The osteoclasts are responsible for resorbing the bone surface during the process of bone resorption, which results in the formation of depressions known as Howship's lacunae. Osteoclasts that resorb bone are highly polarized cells that contain four membrane domains that are physically and functionally unique from one another.