Nerve Cells and Behavior

Question 1

Name 2 types of glial cells:

Answer 1

microglia, macroglia

Question 2

What types of cells fall in the macroglia category?

Answer 2

Oligodendorcytes, Schwann Cells, Astrocytes

Question 3

How do you tell the difference between activated and inactive microglia?

Answer 3

Active are more branched and have stouter processes.

Question 4

What is the cell that myelinates axons the the central nervous system?

Answer 4

oligodendrocytes

Question 5

Name some of the functions of astrocytes

Answer 5

Form blood brain barrier, bring nutrients to neurons, maintain potassium ion concentration in the extracellular space. Take up neurotransmitters

Question 6

How is information coded from one neuron to another?

Answer 6

In patterns of action potentials

Question 7

Name the two principles of neural orgainzation:

Answer 7

Dynamic polarization: signals flow in only one direction.

Connectional specificity: Neurons do not connect to each other randomly