4 - PSY308 Biopsychology The anatomy of the nervous system:...

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PSY308 Biopsychology The anatomy of the nervous system: cells
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Overview Cells of the nervous system A. neurons Parts of a neuron Classification of neurons B. glial cells Types Changing Roles Visualization of the cells
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Neurons Neuroglial (Glial) Cells of the Nervous System Rosenzweig M.R. et al., Biological Psychology (2002) ~100 billion in brain 10 glial cells to 1 neuron
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Parts of a Neuron (Soma) http://www.greenfacts.org/glossary/mno/neuron.htm (soma)
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Soma SER RER Golgi Mitochondria Bear M.F. et al., Neuroscience: Exploring the Brain (2007) CNS = Nucleus PNS = ganglion “Metabolic part” of the neuron Energy producer Ribosomes : Protein synthesis Packaging into vesicles “gene expression” Cytoplasm Lipid synthesis Nucleus
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Cytoskeletal Proteins Microtubules Neurofilaments Microfilaments 1. Maintains the structure 2. Axonal transport Transfer proteins made to other cells
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Axon http://faculty.etsu.edu/currie/excitation.htm Axon terminals Terminal boutons Axon hillock Node of Ranvier
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4 - PSY308 Biopsychology The anatomy of the nervous system:...

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