In hyaline cartilage, which cell resides in lacunae?

In hyaline cartilage, which cell resides in lacunae?

• A. Osteocyte
• B. Chondrocyte
• C. Fibroblast
• D. Adipocyte

Answer: (B)

Chondrocytes reside in lacunae in hyaline cartilage. These are the mature cartilage cells responsible for maintaining the extracellular matrix produced earlier by chondroblasts. The lacuna is a small cavity within the cartilage matrix that houses a single chondrocyte (often grouped with nearby cells as isogenous groups after division). This arrangement—chondrocytes in lacunae within a relatively avascular, proteoglycan-rich matrix—is a hallmark of cartilage tissue. The other cell types turn up in different tissues: osteocytes in bone, fibroblasts in connective tissue, and adipocytes in fat tissue.

Chondrocytes reside in lacunae in hyaline cartilage. These are the mature cartilage cells responsible for maintaining the extracellular matrix produced earlier by chondroblasts. The lacuna is a small cavity within the cartilage matrix that houses a single chondrocyte (often grouped with nearby cells as isogenous groups after division). This arrangement—chondrocytes in lacunae within a relatively avascular, proteoglycan-rich matrix—is a hallmark of cartilage tissue. The other cell types turn up in different tissues: osteocytes in bone, fibroblasts in connective tissue, and adipocytes in fat tissue.