Neuroglial Cells

Question 1

Astrocytes

Answer 1

CNS
Function: support & regulate movement of metabolites & waste; maintain blood brain barrier; protect neurons
Protoplasmic - in gray matter, branching cytoplasmic processes
Fibrous - in white matter, straight cytoplasmic processes

Question 2

Oligodendrocytes

Answer 2

CNS
Function: myelinate axon
Has nodes of ranvier
Note: 1 oligodendrocyte myelinates many axons

Question 3

Microglia

Answer 3

CNS
Function: phagocytosis of bacteria; remove debris & injured tissue
Originates from hematopoietic cell

Question 4

Ependymal Cells

Answer 4

CNS
Epithelial lining of CNS cavities
Location: Choroid plexus

Question 5

Schwann Cells

Answer 5

PNS
Function: Myelinate neurons; scaffolding; clean debris; support cell
Note: Several cells myelinate 1 axon

Question 6

Satellite Cells

Answer 6

PNS
Function: Surround cell body; regulate perineuronal environment & metabolic exchange; electric insulator (doesn’t make myelin)
Cuboidal cells