Which cell type is responsible for producing the cartilage matrix in developing cartilage?

Which cell type is responsible for producing the cartilage matrix in developing cartilage?

• A. Chondroblast
• B. Chondrocyte
• C. Fibroblast
• D. Osteoblast

Answer: (A)

The cells that produce the cartilage matrix are chondroblasts. These active, matrix-synthesizing cells secrete the components of cartilage extracellular matrix, mainly type II collagen and proteoglycans, forming the tissue as they lay it down. As they become surrounded by their own matrix, they mature into chondrocytes, which reside in lacunae and maintain the cartilage. Fibroblasts make fibrous connective tissue (and can contribute to fibrocartilage in some settings), while osteoblasts make bone matrix. So the correct cell type for producing cartilage matrix during development is chondroblast.

The cells that produce the cartilage matrix are chondroblasts. These active, matrix-synthesizing cells secrete the components of cartilage extracellular matrix, mainly type II collagen and proteoglycans, forming the tissue as they lay it down. As they become surrounded by their own matrix, they mature into chondrocytes, which reside in lacunae and maintain the cartilage. Fibroblasts make fibrous connective tissue (and can contribute to fibrocartilage in some settings), while osteoblasts make bone matrix. So the correct cell type for producing cartilage matrix during development is chondroblast.