Hypoxia

It means the lack of oxygen
At tissue level.
Types:-
1)hypoxic hypoxia
2)stagnant(ischaemic)hypoxia
3)anaemic hypoxia
4)histotoxic hypoxia

1)Hypoxic hypoxia due to low po2
At tissue level.
2)Stagnant hypoxia due to reduced
Blood flow at tissue level.
3)Anaemic hypoxia due to reduced
Haemoglobin.
4)Histotoxic hypoxia due to toxic agents
Action on tissue cells because of
This cells can not able to take o2.