Which of the following scenarios exemplifies regeneration by stem cell activation rather than repair by scar (fibrosis)?
Show answer and explanation
Correct answer: Renewal of intestinal epithelium via intestinal stem cells after mucosal injury
The intestinal epithelium regenerates via activation of resident intestinal stem cells to replace damaged mucosal cells, restoring normal structure and function — a true regenerative process rather than fibrotic scar formation. Adult stem cells in tissues with high turnover mediate this.
Keep practicing
More Stem Cells and Regeneration questions
- Which of the following correctly ranks stem cell potency from most to least potent?
- Which of the following is a key challenge in using stem cells for regenerative therapies in clinical practice?
- Which statement best describes why some tissues heal primarily by fibrosis rather than regeneration despite the presence of stem or progeni…
- Which of the following is a defining characteristic of a true stem cell?
- Which term best describes stem cells that can give rise to all cell types of the adult body (but not extra-embryonic tissues)?
- Which type of stem cell is most important for ongoing tissue maintenance and repair in adult organisms?