Cell injury
graph TD
subgraph Cell Injury
X[Cell injury];
X1[Hypoxia]
X2[Trauma]
X3[Inflammation]
X4[Genetic]
X5[Nutritional Deficiency];
end
subgraph Hypoxia
X1 ==>X1a[Ischemia] & X1b[Hypoxemia]
X1a ==> X1a1[Obstruction of Artery or Vein];
X1b ==>|:octicons-arrow-down-24: Oxygen in the blood| X1b1[High Altitude] & X1b2[ALveoalr Problems] & X1b3[Hemoglobulin Problems]
X1b1 ==> X1b1a[:octicons-arrow-down-24: oxygen in Air concentration
leads to :octicons-arrow-down-24: oxygen diffusion in lungs]
X1b2 ==> X1b2a[DIsease like COPD,
increases the CO2 concentration];
X1b3 ==> X1b3a[Anemia] & X1b3b[CO poisoning] & X1b3c[Free radical injury ];
X1b3a ==> X1b3a1[Normal Fao2,PAo2,PaO2,SaO2,as all HB is filled with O2,
Hypoxia due to :octicons-arrow-down-24: HB volume];
X1b3b ==> X1b3b1[CO has high affinity to bind to HB than O2.
leads to :octicons-arrow-down-24: Sao2];
X1b3c ==> X1b3c1[Oxygen free radicle steal electrons from Fe2+ to Fe3+,
leads to no Oxygen binding, :octicons-arrow-down-24: Sa02];
end
X ==> X1
X ==> X2;
X ==> X3;
X ==> X4;
Effects of Hypoxia
- No ATP
graph TD
X[Hypoxia] ==> X1[No Krebs cycle];
X1 ==> X1a[ATP deficiency];
X1a -.->|activation of | XX[GLycolysis]
XX -.->|accumulation of LActacte| Xx1[LActic Acidosis];
X1a -.-> X1a1[Na/K pump not functioning];
X1a1 ==> X1a1a[Na accumulation inside the cells];
X1a1a ==> X1a1a1[Water into cell];
X1a1a1 ==> X1a1a1a[Swelling of Cell]
X1a1a1 ==> X1a1a1ab[detachment of Ribosomes from RER]
X1a1a1ab ==> Y[Absence of Protein Synthesis];
X1a -.->|failure of Ca+ pump| X1a2[Accumulation of Ca2+ inside the cell];
X1a2 ==> X1a2a[Activation of Enzymes];
subgraph Reversible injury
X1a1a1a ==>|removal of Stress| z
Y ==> |removal of Stress| z[Back to Normal ]
end
subgraph Irreversible Injury
X1a2a ==> c22[Lysosomal enzyme activation]
X1a1a1a ==> c33[Leakage to Cytoplamic contents];
end