Neuroscience Neurons Synapses Glia
Terms
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- stains the perikaryon of neuronal cell bodies blue/purple
- cresyl violet
- when cns axons are damaged, neuron cell bodies undergo _____, in which the color of Nissle staining is lost
- chromatolysis
- staining method for visualizing dendritic trees
- Golgi silver impregnation
- protrusion from the dendritic surface which receives a synapse, they come in what types?
- spine. thin, mushroom, stubby
- types of synapse where clear round synaptic vesicles are found, type of transmission, features of synapse
- Gray's Type I, and Gray's type II
-
characteristics of Gray's type I synapse:
vesicle type
transmission type
synapse features -
clear round vessicles
excitatory
pronounced synaptic cleft and prominent post-synaptic density -
characteristics of Gray's type II synapse:
vesicle type
transmission type
synapse features -
clear pleomorphic vesicles
inhibitory transmission
narrow synaptic cleft and indistinct post synaptic density -
characteristics of varicosities
vesicles
transmission type/ transmitters
synapse features -
small dense core vessicles
neuromodulation, w/ catecholamines, indoleamine, monamines
swellings along axon -
characteritics of large dense core vesicles:
size
contents
function -
2000 Angstrom diameter
peptides
may act as cotransmitters/neuromodulators - modified astrocytes which guide migration of neurons to proper destination during development
- radial glia
- functional groups of syapses, sheathed by glia
- glomeruli
- astrocytes called ___ in grey matter, ___ in white matter
- protoplasmic, fibrous
- oligodendroglia are called __ in grey matter and __ in white matter
- perineuronal, interfascicular