Tissue Repair and Regeneration Quiz
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Questions and Answers

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 ______)

cells

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 ______

<p>tissue</p> Signup and view all the answers

With mild and transient injury, there is ______

<p>regeneration</p> Signup and view all the answers

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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Test your knowledge about tissue repair and regeneration, including the mechanisms and processes involved in healing injured tissues and cells.

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