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Questions and Answers
Regeneration occurs by proliferation of cells that survived in the injury and retain the capacity to ______
Regeneration occurs by proliferation of cells that survived in the injury and retain the capacity to ______
proliferate
Depending on their relationship to the cell cycle, most mature tissues contain variable proportions of three types of cells: ✔ Continuously dividing cells (labile cells). ✔ Quiescent cells (stable cells) that occasionally go back to the cell cycle. ✔ Non-dividing cells (permanent ______)
Depending on their relationship to the cell cycle, most mature tissues contain variable proportions of three types of cells: ✔ Continuously dividing cells (labile cells). ✔ Quiescent cells (stable cells) that occasionally go back to the cell cycle. ✔ Non-dividing cells (permanent ______)
cells
Healing may be either by regeneration or repair or combination of ______
Healing may be either by regeneration or repair or combination of ______
both
Whenever there is tissue injury, inflammatory reaction begins which tries to limit the damage and remove the injured ______
Whenever there is tissue injury, inflammatory reaction begins which tries to limit the damage and remove the injured ______
With mild and transient injury, there is ______
With mild and transient injury, there is ______
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Study Notes
Cell Proliferation and Types
- Regeneration occurs through the proliferation of surviving cells with regenerative capacity.
- Mature tissues consist of three cell types based on their relationship to the cell cycle:
- Continuously dividing cells (labile cells) that are always in the cell cycle.
- Quiescent cells (stable cells) that can re-enter the cell cycle occasionally.
- Non-dividing cells (permanent cells) that do not proliferate post-maturity.
Healing Processes
- Healing can occur through:
- Regeneration of tissues from surviving cells.
- Repair processes involving scar formation.
- A combination of both regeneration and repair methods.
Inflammatory Response
- Tissue injury triggers an inflammatory reaction aimed at:
- Limiting damage and facilitating the removal of injured tissue.
- Prompting healing processes to initiate recovery.
Response to Injury
- Mild and transient injuries typically result in a direct regenerative response, allowing effective recovery without significant scarring.
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