What is (are) the major adrenergic receptors in the: heart, lungs, coronary arteries, skin/GI arteries, skeletal muscles (both big and small), what does stimulating them do?
heart: beta1 throughout heart (SA node, AV node, atria, ventricles): increase HR, increase conduction, increase contractility
Lungs: beta2 relaxes brochiole SM
coronary arteries: alpha1 and 2 constrict, beta2 dilates
skin/GI arteries: alpha1,2 constricts
skeletal muscles: alphas constric small, beta2 dilates big