细胞内(外)物质的集聚IntracellularAccumulationsNormal substances- H2O, Lipids, proteins, carbohydrates, melaninabnormal endogenous or exogenous substancesmineral, infectious products, et alExogenousproducts- Environmental agents and pigments not brokendown by the cell
细胞内(外)物质的集聚 Intracellular Accumulations ⚫ Normal substances – H2O, Lipids, proteins, carbohydrates, melanin ⚫ abnormal endogenous or exogenous substances mineral, infectious products, et al ⚫ Exogenous products – Environmental agents and pigments not broken down by the cell
细胞水肿cellular swellingThefirst manifestation ofcell injury定义:常是细胞损伤中最早出现的改变。系因线粒体受损,ATP生成减少,细胞膜Na+-K+泵功能障碍,导致细胞内钠离子和水的过多积聚。(1) The common siteliver, kidney,heart(2)Causes:hypoxia,infection,intoxicationMiinjuryNat-K+pumpdysfunctionNat,H,O↑
The first manifestation of cell injury 定义:常是细胞损伤中最早出现的改变。系因线粒体受 损,ATP生成减少,细胞膜Na+-K+泵功能障碍,导致 细胞内钠离子和水的过多积聚。 (1) The common site liver, kidney , heart (2) Causes: hypoxia,infection,intoxication Mi injury →Na+ -K+ pump dysfunction Na+ , H2O↑ 细胞水肿 (cellular swelling)
细胞水肿cellular swelling混浊肉眼:肿大,包膜紧张,边缘变钝切面隆起无光,如沸水煮。光镜:病变初期,细胞质内出现的红染细颗粒状物。若水钠进一步积聚,细胞基质高度疏松呈空泡状,细胞核也可肿胀,胞质膜表面出现囊泡,微绒毛变形消失其极期称为气球样变电镜:线粒体、内质网肿胀
⚫ 肉眼: 肿大,包膜紧张,边缘变钝,切面隆起,混浊 无光,如沸水煮。 ⚫ 光镜:病变初期,细胞质内出现的红染细颗粒状物。若 水钠进一步积聚,细胞基质高度疏松呈空泡状,细胞 核也可肿胀,胞质膜表面出现囊泡,微绒毛变形消失, 其极期称为气球样变 。 ⚫ 电镜: 线粒体、内质网肿胀 细胞水肿 (cellular swelling)
细胞水肿(cellular swelling)Normal cellGranularity changeHydropic change病毒性肝炎
Normal cell Granularity change Hydropic change 病毒性肝炎 细胞水肿(cellular swelling)
细胞水肿cellular swelling)Cellular swelling of liver
Cellular swelling of liver 细胞水肿 (cellular swelling)