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Receptores nicotinicos

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by

Gabriela Cárdenas Cerda

on 27 November 2013

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Transcript of Receptores nicotinicos

Receptores nicotínicos
Receptores
colinérgicos
Función
Es el encargado de interceder la rápida transmisión sináptica del SNC y en el periférico
Receptores nicotínicos de dos subtipos:
Receptor muscarínico
Respuestas producidas por la excitación de fibras postganglionares parasimpáticas.
Muscarina
Atropina
Receptor nicotínico
Excitación de fibras preganglionares simpáticas y parasimpáticas
Como lo que ocurre en la placa motora
Nicotina
Tubocurarina

Forman parte de un canal iónico, cuya apertura controlan
Su canal iónico es del tipo: receptor-dependiente.
Se ubican en la membrana de la placa motriz, células ganglionares.
Características
Mecanismo
Receptor nicotínico muscular
Ubicado en la placa motriz
Tubocurarina
Receptor nicotínico neuronal
Se ubica en los ganglios vegetativos y células cromafines de la medula suprarrenal
Trimetafán
Full transcript