Download - Sistema Nervioso
Transcript
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SISTEMA NERVIOSOIVÁN ZAMORA
DANTE AURELIO
MIGUEL ORUÉ
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¿QUÉ ES?
• El Sistema Nervioso es una red de tejidos de origen ectodérmico en los animales cuya unidad básica es la neurona.
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NEURONAS
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NEUROGLIA
• Central: astrocitos, oligodendrocitos, microglia y células ependimarias.• Periférico: células de Schwann y capsulares o de
Müller.
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ASTROCITOS, OLIGODENDROCITOS, MICROGLIA Y CÉLULAS EPENDIMARIAS.
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IMPULSOS NERVIOSOS
• Potencial de reposo• Potencial de acción• Potencial de acción a lo largo del axón• Periodo refractario
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TRANSMISIÓN SINÁPTICA
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•Acetilcolina•Dopamina•Noradrenalina•Serotonina•Endorfinas
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NEUROTRANSMISORES
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LIQUIDO CEFALORRAQUIDEO
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MENINGES