Summary: Adrenoceptors β Receptors Preceptors: heart stimulation: contractility automaticity↑, conduction↑, OXygen- consumption↑, cardiac output: increased lipolysis B2 receptors: bronchodilation; slight vasodilation increased muscle and liver glycogenolysis; increased release of glucagon °β3 receptors: lipolysis, thermogenesis 12b Receptors • b1 receptors: heart stimulation: contractility↑, automaticity↑, conduction↑, oxygen-consumption↑, cardiac output↑; increased lipolysis • b2 receptors: bronchodilation; slight vasodilation; increased muscle and liver glycogenolysis; increased release of glucagon • b3 receptors: lipolysis, thermogenesis Summary: Adrenoceptors 12