ABSTRACT
In general, beta-stimulation ‘makes ’em bigger’ meaning they cause the dilation of smooth muscles in structures such as the bronchioles, uterus, blood vessels. A good memory jogger is therefore:
And what about beta receptors in the heart and lungs? It’s easy to learn which subtype predominates in each. The heart has predominantly beta-1 receptors, and the lungs have mainly beta-2, and of course you have one heart and two lungs. So:
Could it be any easier?
