Hello, I noticed that in Wikipedia, action potential is not solely defined as a neural process, but rather as a process that happens between any cells that can release chemical signals and have target cells that can receive the signals. Is this true? Would we say that endocrine system creates a slow, wide-spread action potential throughout the body by releasing adrenaline? Similarly, could plants also have action potentials? Or does terminology change when we step out of the animal world? Additionally, does an action potential refer to solely one cell triggering the action potential, or can we say that an action potential could happen for example, in a specific domain of the nervous system, involving many neurons that are of same type and doing a similar function? Any thoughts appreciated!