* Neurons: These are the most well-known brain cells. They are responsible for transmitting information throughout the brain and body. They do this by sending electrical and chemical signals.

* Glial cells: These cells provide support and protection for neurons. They also help to regulate the chemical environment of the brain. There are several different types of glial cells, each with its own specific function.

Here are some examples of glial cells:

* Astrocytes: These cells provide structural support for neurons, regulate the blood-brain barrier, and help to clear waste products from the brain.

* Oligodendrocytes: These cells produce myelin, a fatty substance that insulates nerve fibers and helps to speed up the transmission of electrical signals.

* Microglia: These cells are the immune cells of the brain. They help to protect the brain from infection and injury.

So, while "neurons" is a broad term, the brain contains many different types of cells, each with its own important role.