Neurons have mitochondria, same as other cells in the body, where energy is released to power the cell. Where oxygen is used to “burn” food and get the energy out. (Brynie, Faith Hickman. 101 Questions Your Brain has Asked About Itself but Couldn’t Answer Until Now. p 31. CT: Millbrook Press, 1998.)
Refer to Neurons and Neurotransmitters for additional information.