Cells of the Nervous System Flashcards
What are the four types of neuron
multipolar, bipolar, pseudo-unipolar, unipolar
Name some glial cells
macroglia, microglia, ependyma
What are the types of macroglia
astrocytes, oligodendrocytes, glioblasts
types of microglia
macrophage cells, primary immune cells of CNS
Describe the ependyma
thin neuroepithelium - lines ventricles and central canal
What are the functions of astrocytes
create and maintain brain environment, control development of neural cells
Where are fibrous astrocytes found
white matter - myelinated axons
Where are protoplasmic astrocytes found
grey matter
What are the differences between fibrous and protoplasmic astrocytes
protoplasmic - shorter, stouter, less cytoplasmic fibrils
What do protoplasmic astrocytes have a high affinity for
GABA, glutamate
What is a possible function of protoplasmic astrocytes
storage systems for neurotransmitters
What are microglia derived from
circulating monocytes
What are microglia
inflammatory cell type in brain
What is the function of microglia
repsond to pathogens and injury
What are the types of ependyma
ependymocytes, tanycytes, choroid epithelial cells
