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Alpha Adrenergic Receptors

Description

Year 2 Flashcards on Alpha Adrenergic Receptors, created by gina_evans0312 on 25/02/2014.

Flashcards by gina_evans0312, updated more than 1 year ago

	Created by gina_evans0312 about 10 years ago

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Resource summary

Question	Answer
Types of Receptors	2, each with three subclasse
A1- Mode of Action	Coupled to phosphlipase Cbeta & increases cytoplasmic Ca2+
A1- Effect	Vasoconstriction of smooth muscle & relaxation of the GI tract
A1- Effect on Salivary Glands	Increases K+ secretion
A1- Effect on Liver	Inc in glycogenlysis and gluconeogenesis
A2- Mode of Action	Inhibits adenylate cyclase & reduces Ca2+/increases K+
A2- Effect	Inhibits neurotransmitter & insulin release, and platelet aggregation
Effect of Agonists on the CV system	Inc blood pressure (peripheral, systolic & diastolic) causing heart rate to slow
Adrenaline- Effect On Heart	Inc CO, dec peripheral blood pressure & inc systolic/diastolic pressure

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