Which term is the immature cell from which connective tissue can develop?

• A. Fibroblast
• B. Furuncle
• C. Contusion
• D. Cryosurgery

Answer: (A)

Fibroblasts are the immature cells that generate connective tissue by producing the extracellular matrix, especially collagen. They are the active, proliferative cells in connective tissue and lay down the scaffolding that gives tissue its structure; as they complete their work they can become less active fibrocytes. This makes fibroblast the correct term for the immature cell from which connective tissue develops. The other terms describe a skin boil, a bruise, and a freezing treatment, not a cell type.