Alpha receptors are found in smooth muscle surrounding blood vessels of peripheral circulation . Medical Uses of all this. Epinephrine can be used during an asthmatic attack to relax bronchi and ease breathing. There are more than two types of epinephrine receptors on smooth muscle cells, so epinephrine may affect smooth muscle in other tissues in other ways. E. Same 2nd messenger can generate different responses in different tissues.
Receptors are same.
Response to same 2nd messenger is different . See also Becker fig. Receptor is usually a single pass protein 2. Active kinase auto-phosphorylates itself. Other proteins are activated by binding to phosphorylated TK's.