Emergency Medical Services, more commonly known as EMS, is a system that provides emergency medical care. It is activated by a call for help, after an incident of serious illness or injury. The focus of EMS is emergency medical care of the patient(s). EMS is most easily recognized when emergency vehicles or helicopters are seen responding to emergency incidents. But EMS is much more than a ride to the hospital. It is a system of coordinated response and emergency medical care, involving multiple people and agencies. A comprehensive EMS system is ready every day for every kind of emergency.