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Unformatted text preview: o Axon branches and with terminal knobs at the end Synapsis: excites neuron When you are learning/studying a lot then new spines will form if not doing anything they will decrease o Dendrites Bushy o Axon Long Can be naked or covered by protein rings Axon hillock (very beginning of axon) • Small bump at beginning Collaterals • Activating of other nerve cells • Come out of the side Bundles • Tracts in CNS • Nerves in PNS o Nerves can be naked or be covered by protein-lipid rings o Exchange only in nodes Coated axons form white matter Myelin sheath • Ganglion cells surround • Gaps = nodes of ranvier – the only place where exchange takes place Oligidendrocyte and Myelination in the CNS • Arms wrap tightly around axon Neuroglia •...
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- Winter '08
- rings Axon hillock