ANATOMY

Detailed explanation-1: -1). Osteoblasts in the organized epithelioid structure secrete bone organic matrix, and remain as a tight epithelium to control the matrix environment for mineralization.

Detailed explanation-2: -Osteoblasts are cells responsible for the secretion and deposition of bone morphogenetic proteins (BMPs) into the extracellular matrix during bone formation.

Detailed explanation-3: -Osteoblasts are the bone cells derived from osteochondral progenitor cells that form the bone through a process called ossification.

Detailed explanation-4: -Osteoblasts originate from growth plate chondrocytes, bone marrow stromal cells, quiescent bone-lining cells, and other fibroblasts, such as suture fibroblasts or dental follicle cells.

Detailed explanation-5: -These bone-forming cells are formed when osteogenic cells differentiate in a tissue covering the outer surface of bone, called the periosteum. They also arise from osteogenic cell differentiation occurring in the endosteum, a structure found in the middle of bone and in the bone marrow.