Cells

Question 1

neurons (2)

Answer 1

fire signals/send messages connected to the muscles

most are myelinated = speeds up signalling

Question 2

4 types of glial cells and roles

Answer 2

ependymal - makes up epithelial lining and produces CSF
astrocytes - sit between blood supply and neurons and extracts nutrients to supply the neurons
microglia - fight infections
oligodendrocytes - produces myelin