Chapter two Repair
Su Min(苏敏)
Definition:
Repair is the process by which lost or destroyed cells are replaced by vital cells (regeneration).
Section 1 Regeneration
Definition:
The surviving healthy cells nearby damage proliferate and move for repair.
1. Type:
(1) Complete regeneration:
The new tissue is the same with the loss in structure and faction. Commonly in physiological regeneration.
Conditions:
① the ability of regeneration of parenchymal tissue is strong.
② damage area is small and the stromal framework of the injured tissue is preservative well.
(2) plete regeneration:
granulation tissue (stromal or filler elements) proliferate to fill defect, replacement by scar. Commonly in pathological regeneration.
Conditions:
① the ability of regeneration of parenchymal tissue is weak.
② damage area is extensive and the stromal framework of the injured tissue is not preservative well.
2. The regenerative capacity types of cells
Labile cells:
normally a continuous process of active replacement is chances of restoration by regeneration are excellent.
Examples:
the covering epithelium, the bone marrow cells and the lymphoid cells.
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