Nervous System I: Histology
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| Central Nervous System | show 🗑
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| show | somatic (voluntary) and autonomic (involuntary)
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| neurons | show 🗑
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| show | afferent - deliver info to CNS
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| show | efferent - carry info to PNS
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| associative | show 🗑
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| Multipolar neuron - L | show 🗑
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| show | found in retina and inner ear *special senses
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| Unipolar neuron - L | show 🗑
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| show | has organelles, no centrioles
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| show | chromatophillic bodies. Free ribosomes that produce protein (neurotransmitters) and RER
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| neurofibrils | show 🗑
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| show | more than one per neuron. Transmit info to cell body
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| axon | show 🗑
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| myelin sheath - Function | show 🗑
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| Amount of myelin affects... | show 🗑
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| oligodendrocytes | show 🗑
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| schwann cells | show 🗑
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| show | lipid (fat)
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| neuroglia | show 🗑
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| show | CNS. phagocytic. ingest dead/damaged tissue
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| astrocyte | show 🗑
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| Blood-Brain barrier | show 🗑
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| Edendymal cells | show 🗑
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| Satellite cell | show 🗑
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| Nuclei | show 🗑
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| Ganglia | show 🗑
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| show | PNS. Bundle of axons
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| Tract | show 🗑
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| show | cell wall of oligodendrocyte or schwann cell
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| show | area on axon not covered by myelin
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| show | terminals, end of axon does not touch the next neuron
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| show | space between neurons. site of communication
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| show | neuron before synapse
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| show | space between axon of presynaptic neuron and dendrite of post synaptic neuron
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| show | neuron after synapse
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| show | continuous flow of the impulse down the axon. Usually in unmyelinated
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| Saltatory conduction | show 🗑
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| consequence of electrical impulse | show 🗑
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| "A" fiber | show 🗑
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| "B" fiber | show 🗑
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| "C" fiber | show 🗑
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| show | depolarize postsynaptic neuron. acetylcholine, norepinephrine, serotonin, dopamine
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| show | prevent transmission of impulse to next neuron. Gamma aminobutyric acid (GABA). Enkephalins, endorphins, dopamine
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| Neurotransmitters associated with and cause of drug addiction | show 🗑
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| show | gap between axon and muscle. "myoneural junction". terminal part of axon, receptor site on muscle fiber.
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| show | acetylcholine
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