Chapter 2 Tissue repair Department ofpathology longjie
Chapter 2 Tissue repair Department of pathology longjie
Repair (修复) Would healing(创伤愈合)
Repair (修复） Would healing （创伤愈合）
Repair(修复) As cells and tissues are being injured, events that contain the damage and prepare the surviving cells to replicate are set into motion
Repair (修复） As cells and tissues are being injured, events that contain the damage and prepare the surviving cells to replicate are set into motion
Repair begins very early in the cell injury, and involves two processes 1. Regeneration(再生) 2. fibrosis (纤维性修复)
Repair begins very early in the cell injury, and involves two processes: 1. Regeneration (再生） 2. fibrosis （纤维性修复）
regeneration 再生 Regeneration of injured tissue by parenchymal cells of the same type
regeneration 再 生 Regeneration of injured tissue by parenchymal cells of the same type
types Physiological regeneration Pathological regeneration
types Physiological regeneration Pathological regeneration
Proliferative potential of different cell types Labile cells 不稳定细胞 Stable cells 稳定细胞 Permanent cells 永久性细胞
Proliferative potential of different cell types Labile cells Stable cells Permanent cells 不稳定细胞 稳定细胞 永久性细胞
Labile cells o Continuously dividing and dying ● Surface epl thelia stratified squamous surfaces cuboidal epithelia columnar epithlium transitional epithelium Hematopoietic cells
Labile cells ⚫ Continuously dividing and dying ⚫ Surface epithelia stratified squamous surfaces cuboidal epithelia columnar epithlium transitional epithelium ⚫ Hematopoietic cells
秒, N 腺上皮再生( Regeneration of glandular epithelia 腺体及其基底膜破坏,腺上皮增生,形成简单的腺体,进行修复。
Stable cells o Quiescent but can rapidly divide in response to injury Parenchymal of solid glandular tissues: liver, kidney, pancreas o Endothelial cells lining blood vessels ● fibroblast e Smooth muscle connective tissue
Stable cells ⚫ Quiescent but can rapidly divide in response to injury ⚫ Parenchymal of solid glandular tissues: liver, kidney, pancreas ⚫ Endothelial cells lining blood vessels ⚫ fibroblast ⚫ Smooth muscle connective tissue