Final answer:
The Metropolitan Medical Response System (MMRS) consists of trained responders who specialize in dealing with mass casualty events and provide medical care during national emergencies.
Step-by-step explanation:
The Metropolitan Medical Response System (MMRS) is a program that consists of responders who have obtained specialized training and equipment to deal with mass casualty events. They are not totally financed by the federal government national disaster fund, but rather receive funding from various sources including federal grants. The MMRS also does not arrange for patient admissions to federal hospitals, but focuses on providing medical care during times of national emergencies.