Cells of the Nervous System

Question 1

What are the 2 types of cells in the nervous system?

Answer 1

1. Neurons

2. Neuroglia

Question 2

Name the 6 types of neuroglia in the CNS.

Answer 2

1. Astrocytes
2. Microglia
3. Ependymal cells
4. Oligodendrocytes
5. Satellite cells
6. Schwann cells

Question 3

5 function of astrocytes?

Answer 3

1. Form supportive scaffolding
2. Contact blood vessels to form Blood Brain Barrier
3. Secretes Neuron Growth Factors
4. Communicate electronically with neurons
5. Regulates Extra Cellular Fluid around neurons

Question 4

2 functions of microglia?

Answer 4

1. Phagocytize dead tissue, etc.

2. Gather at sites of damage.

Question 5

2 functions of ependymal cells?

Answer 5

1. Line ventricles of the brain.

2. Makes and moves Cerebral Spinal Fluid

Question 6

Main function of oligodendrocytes?

Answer 6

To make myelin in the CNS

Question 7

Main function of satellite cells?

Answer 7

Unclear, but thought to help nurture and nourish.

Question 8

2 functions of schwann cells?

Answer 8

1. Form myelin sheaths in the PNS.

2. Assist in neural regeneration.

Question 9

Which is the most numerous glial cell?

Answer 9

Astrocytes (90% of glia)

Question 10

What do microglia develop from?

Answer 10

Monocytes

Question 11

Where can you find satellite cells?

Answer 11

Surrounding somas and ganglia in the PNS