histology CNS Flashcards
what sort of synapse is this
axosomatic
label this. what is it
myelinated neurone. cytoplasm pushed to the outside
label
1: Schwann cell nucleus 2: Myelin sheath 3:Axon
what do astrocytes do
BBB with feet
what sort of astrocytes are in grey matter
protoplasmic - short numerous processes
what sort of astrocytes in white matter
fibrous - few processes, quite straight
cns or pns? label
cns lack of supporting cells around unmyelinated axons, absence of basal lamina and CT in the CNS, helps to distinguish it from PNS in histological section.
astrocytes at top
oligodendrocytes
how can you recognise microglie
smallest cells, elongated nuclei
what do ependymal cells have
cillia and microglia
how many layers of cells in the cerebellar cortex
3
what are the layers in teh cerebellar cortex
molecular, ganglionic (purkinje cell) granular
how do you recognise cerebellum
purkinje cells (large, flask-shaped nucleus)
what neurotransmitter purkinje cells
GABA (inhibitory)
what are two other, exciting names for neurone cell bodies
soma or perikaryon
what are Nissl bodies
basophilic areas in highly metabloically active cells like motor neurones which comtain ++RER etc for protein synthesis
