Cells of the Nervous System

Question 1

What is contained within the gray matter?

Answer 1

Neuronal cell bodies

Question 2

What is contained within the white matter?

Answer 2

Compact bundles of myelinated axons with abundant oligodendrocytes w/ intersperesed astrocytes

Question 3

What pigments the substantia nigra and pons?

Answer 3

Clusters of catecholaminergic neurons pigemnted with brown neuromelanin pigment

Question 4

An immunostained brain biopsy is shown. What cells are shown? What is their quest?

Answer 4

Astrocytes; They regulate the CNS microenvironment and respond to pathologic insults.

Question 5

A butt-ton of astrocytes are shown in the biopsy of an aged person. What is the name of the inclusion bodies of these cells?

Answer 5

Corpora amylacea

Question 6

A butt-ton of astrocytes are shown below. What are the deeply eosinophilic rods called? What is the ongoing process that these astrocytes have been undergoin?

Answer 6

Rosenthal fibers; Long-standing astrogliosis

Question 7

Look at all of those fried eggs! What type of cells are they? What is their quest? What is their PNS counterpart?

Answer 7

Oligodendroglia; To produce and maintain myelin sheaths of axons in CNS; Schwann Cells

Question 8

Holy cow! Look at all of these cells! What are they? What is their quest? What marker can they be stained for? What kneejerk word describes their nuclei when activated?

Answer 8

Microglia; They are part of the monocyte-macrophage system of the CNS and respond quicly to CNS insults; CD68 Elongated;

Question 9

What is the Ependyma?

Answer 9

Lining betwixt the CSF and brain parenchyma