Peripheral Adrenergic & Cholinergic Receptors - Alpha 1 Eye mydriasis Arterioles constriction(skin viscera mucous memb Veins constriction

Peripheral Adrenergic & Cholinergic Receptors - Alpha...

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Alpha 1 Eye – mydriasis Arterioles – constriction (skin, viscera, mucous memb) Veins – constriction Bladder – contraction of trigone-retention Sex organs, male – ejaculation Prostatic capsule - contraction Alpha 2 Post synaptic nerve terminals (no real action in PNS, but in CNS: decrease in outflow to heart & bl vessels & relief of sever pain) Beta 1 Heart: incr rate & force of contraction incr AV conduction velocity Kidney – release of renin Beta 2 Arterioles: dilation heart lung skeletal muscles Bronchi: dilation Uterus: relaxation Liver: glycogenolysis Skeletal muscle: enhanced contraction & glycogenolysis
Dopamine Kidney: dilation of kidney vasculature Muscanaric (M1,M2,M3) Act on all parasympathetic target organs: Eye: miosis and tearing

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