axon

dendrites

receptive region, conveying messages,

dendritic spines

appendages with bulbou or spily ends

axon hillock

cone shaped area

intial segment of the axon

starts uniform diameter of remainder of axon

nerve fibers

long axons

axon collaterals

occasional branches

tracts

bundle of axons in CNS

bundles of exons PNS

nerves

axon

conducting region

axon function

generates nerve impulese away from cell body to axon terminals

axonal transport

internal transport mechnisms

anterograde

away from cell body

mitochondria, enzymes

anterograde movement

retrograde

towards cell body

organells degraded, signal moleecules, bacteria

retrograde movement