Question: How many types of this cell are there?

Sergio Martin Saldana answered on 9 Nov 2019:

This is a hard and really good question indeed. Our body has hundred of different types of cells with different roles. As an example, only in our brain we have different types of cells, such as neurons, astrocytes, microglia or oligodendrocytes, and all of them plays an important role in the correct function of the brain