SUBCELLULAR ORGANIZATION OF THE NERVOUS SYSTEM

Nissl substance

'translational cytoplasm'

RER

protein synthesis

AXON HILLOCK

lack of Nissl substance #

microtubules
microfilaments

aligned parallel

initial segment

specialized plasma membrane

thin undercoating

functions, composition - ???

voltage-sensitive ion channels

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AXONS

constant diameter

nodes of Ranvier

axoglial jinctions

Caspr/Paranodin

Contactin

neurofascin Nfasc155

DENDRITES

reduction of diameter

spines

Nissl substance
mRNA

development and aging

'paradoxical cells'

no axons

amacrine
horizontal
pseudounipolar

gap junctions

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