What is the Functional Role of β2 Adrenergic Receptors?
The activation of β2 adrenergic receptors triggers several physiological responses. In bronchioles, it induces bronchodilation, which is critical in conditions like asthma. In the vascular system, it causes vasodilation, enhancing blood flow to skeletal muscles. These receptors also facilitate glycogenolysis in the liver, increasing blood glucose levels, which is vital during stress responses.
