Cytology of the CNS Flashcards
1
Q
What layer is the nervous system developed from?
A
Ectoderm
2
Q
Where are microglia developed from?
A
Mesoderm
3
Q
What are ganglia?
A
groups of neuronal cell bodies outside the CNS
4
Q
Unmyelinated axons are?
A
C fibers, they are also the smallest
5
Q
Myelinated axons are?
A
A fibers, largest to smallest-alpha, beta,gamma, delta
sympathetic preganglionic fibers are small but myelinated
6
Q
Types of synaptic contacts
A
axosomatic, axodendritic, axoaxonic, dendrodentritic, somasomatic
7
Q
Oligodendryocytes vs Shwann cells?
A
Oligos are responsible for myelination of axons ni the CNS. Schwann cells generate myelin in the PNS.
8
Q
What are EPENDYMAL cells?
A
Ependymal cells line the ventricles of the CNS.
