Chapter 2

Chapter 2 - Glia Astrocytes Regulate intercellular space...

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The Prototypical Neuron Soma, Nissl, Golgi, Cajal, microtubules (tubulin), microtubule-associated protein, microfilaments (actin), amyloid, neurofilaments, axon, collaterals, axon terminal, synaptic vesicles, Wallerian degeneration, anterograde transport, kinesin, retrograde transport, dynien, dendritic spines. Neuron Classification By # of neurites - unipolar, bipolar, multipolar By dendrite type - pyramidal, stellate, spiny, aspinous By connections - sensory, motor interneurons By axon length - Golgi type I, projection; Golgi type II, local By neurotransmitter released - acetylcholine, epinephrine, catacholamine, cholecystokinin
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Unformatted text preview: Glia Astrocytes Regulate intercellular space Restrict diffusion Some neurotransmitter uptake regulate interstitial [K+] have neurotransmitter receptors Myelinating Glia Oligodendroglia Wrap around axons to provide electrical insulation Regulate [K+] outside axon Leave naked Nodes of Ranvier Wrap a number of adjacent axons Schwann cells Wrap cell membrane around a peripheral nerve axon and only one Regulate [K+] Cover Node of Ranvier with cell membrane, but not myelin Ependymal cells - line ventricles and central canal, add to cerebro-spinal fluid Microglia - serve the purpose the macrophages do in the rest of the body....
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This note was uploaded on 09/17/2008 for the course NEUR 001 taught by Professor Paradiso during the Fall '08 term at Brown.

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Chapter 2 - Glia Astrocytes Regulate intercellular space...

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