Adrenergic Receptors: Types, Distribution, Mechanism, Agonist, Antagonist 

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Adrenergic Receptors:
Adrenergic receptors are G protein-coupled receptors. Broadly they are divided into α, and β adrenergic receptors. α1 receptors are involved in vasoconstriction, contraction of smooth muscles in the genitourinary tract, glandular secretion, and gut relaxation. α2 receptors are involved in the inhibition of neurotransmitter release from nerve endings, decrease in sympathetic outflow, inhibition of insulin release, platelet aggregation, and vasoconstriction. β1 receptors are involved in the stimulation of heart activity, and the release of renin from JG cells in the kidney. β2 receptors cause bronchodilatation, vasodilatation, uterine relaxation, relaxation of the digestive tract, detrusor relaxation, and increased aqueous secretion.
Dr Vipul Navadiya
Chapters:
00:00 Title
00:04 Introduction and Types
00:43 Alpha-1 Adrenergic Receptors
01:51 Alpha-2 Adrenergic Receptors
03:18 Beta Adrenergic Receptors Introduction
03:37 Beta-1 Adrenergic Receptors
04:25 Beta-2 Adrenergic Receptors
05:19 Beta-3 Adrenergic Receptors
05:49 Summary
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