Some major points on the Effects of Hypoxia

Cells obtain their energy from oxygen. Most cells have a limited ability to respire anaerobically but brain cells do not; not only do brain cells stop working if no oxygen is present but they are also killed if they are deprived of oxygen for a few minutes. The body has many responses to hypoxia that tend to reduce its severity. In an earlier lecture we noticed that there were 4 different ways in which hypoxia could be produced and the way in which the hypoxia is produced affects how the body responds.