Which type of repair involves damaged cells being repaired by the same type of cell?

Which type of repair involves damaged cells being repaired by the same type of cell?

• A. Replacement
• B. Reconstitution
• C. Regeneration
• D. Remodeling

Answer: (B)

The key idea is how tissue repairs preserve the original cell type. Reconstitution describes repair where damaged cells are replaced by the same type of cell, restoring the tissue with its original cellular makeup. This happens when local cells proliferate and substitute lost cells with identical ones, aiming to maintain normal structure and function. It’s different from replacement, where healing occurs through scar tissue (fibrous tissue) rather than the original cells. It’s also distinct from regeneration, which involves regrowth of tissue and can rely on stem or progenitor cells to recreate the tissue, and from remodeling, which is the later refinement and reorganization of tissue after healing rather than a direct replacement of the damaged cells.

The key idea is how tissue repairs preserve the original cell type. Reconstitution describes repair where damaged cells are replaced by the same type of cell, restoring the tissue with its original cellular makeup.

This happens when local cells proliferate and substitute lost cells with identical ones, aiming to maintain normal structure and function. It’s different from replacement, where healing occurs through scar tissue (fibrous tissue) rather than the original cells. It’s also distinct from regeneration, which involves regrowth of tissue and can rely on stem or progenitor cells to recreate the tissue, and from remodeling, which is the later refinement and reorganization of tissue after healing rather than a direct replacement of the damaged cells.