glial cells/neuroglia are what kind of cells?
supporting cells, non-conducting cells
What term refers to the cell body of a neuronal cell?
Soma/perikaryon (refers to the nucleus and surrounding cytoplasm)
What is the term used to describe the ABUNDANT RER in soma/perikaryon of glial cells?
does the axon hillock have organelles?
What does NOT contain Nissl bodies/substance?
how are synaptic vesicles transported? Where are they transported?
to the axon terminal on a system of intermediate filaments and microtubules
how are NTs released at the synaptic terminal?
Name the 4 types of Glia/Glial cells.
how are astrocytes visualized?
GFAP antibodies used for immunocytochemistry to see astrocytes
What is GFAP? What does it make up?
glial fibrillary acidic protein
composes intermediate filaments
what are the two types of astrocytes?
Which type of astrocyte is more prevalent in gray matter? In white matter?
protoplasmic astrocytes---gray matter
fibrous astrocytes---white matter
microglia is derived from what?
what is the main function of oligodendrocytes?
produce myelin in the CNS
Where can you find Ependymal cells?
they line the ventricles of the brain and the central canal of the spinal cord
Describe the lining of ependymal cells in the ventricles of the brain and central canal of the spinal cord
they form a single layer of cuboidal to columnar cells with both cilia and microvilli
CSF is secreted by what?
what is the origin, location, and function of ependymal cells?
fn-line cavities of CNS
what is the origin, location, and fn of Oligodendrocytes?
What is the origin, location and fn of Astrocytes?
Origin: neural tube
Fn: structural, metabolic support; repair; BBB (blood-brain barrier)
What is the origin, location, and function of Microglia?
Origin, location, and function of Schwann cells?
fn- myelin production in PNS
What are the functions of Satellite cells?
1. help provide controlled microenvironment around neuronal cell bodies of ganglion
2. provide a pathway for metabolic exchanges and electrcal insulation
Describe ganglion cell bodies
round with centrally-located nuclei