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4939551
Unión Neuromuscular
Description
Mind Map on Unión Neuromuscular, created by Elizabeth Sandoval on 23/03/2016.
Mind Map by
Elizabeth Sandoval
, updated more than 1 year ago
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Created by
Elizabeth Sandoval
almost 9 years ago
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Resource summary
Unión Neuromuscular
Axón de una neurona más una Fibra muscular = Unión neuromuscular o sinapsis neuromuscular
Estructura
Vista detallada de la unión neuromuscular:1. Terminal pre sináptica2. Sarcolema3. Vesícula sináptica4. Receptor nicotínico5. Mitocondria
Unidad Motora
NEURONA MOTORA + FIBRAS MUSCULARES
Su especialidad es:
La conducción del impulso nervioso hacia las fibras musculares.
Tipos: Lentas, Rápidas resistentes a la fatiga, y Rápida fatigable
La neurona motora es la que emite los impulsos haciendo que las fibras musculares se contraigan.
Transmisión Neuromuscular
La acetilcolina sale de la terminal nerviosa por un mecanismo de: EXOCITOSIS
Las estructuras encargadas de la contracción muscular: las miofibrillas.
Desordenes de unión neuromuscular
Enfermedades por trastornos en la transmisión de los impulsos a través de la unión neuromuscular.
Miopatías
Alteraciones Miopatías
Miastenia gravis
Distrofia muscular de Duchenne
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