Receptors of the heart
Think: "2 Beautiful hearts Marry 2 Be 1"
- B2 receptor (adrenergic)
- M2 receptor (cholinergic) and
- B1 receptor (adrenergic)
(B1 receptors are present in heart and JG cells of the kidney and B2 receptors in heart and smooth muscles.)
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Did you know?
|The heart is innervated by both sympathetic (adrenergic) and parasympathetic (cholinergic) fibres.|
|Adrenergic nerves from cervical sympathetic chain exerts positive ionotropic (contractility) and chronotropic (heart rate) effects on heart through B1 receptors.|
|B2 receptors are more in smooth muscles of vessel walls and thus mediate vasodilatation.|