myogenic

This term is used almost exclusively in medical, biological, and physiological contexts to describe processes that are self-generated by muscle tissue. It carries a technical, clinical register and is typically used to contrast with neurogenic processes, where the stimulus originates from the nervous system.

In a clinical setting, the term describes the intrinsic ability of certain muscles, such as the cardiac muscle, to initiate contraction independently. It is not used in casual conversation or general descriptions of muscle movement.