The pump: Most insulin pumps are about the size of a pager, and contain a reservoir of insulin, the pumping mechanism, battery, computer chip and screen. They are outside of the body, so they are called external pumps.
The mission of the Marine Reserve is to augment and reinforce active. Marine forces in time of war, national emergency or contingency. operations, provide personnel and operational tempo relief for the. active forces in peacetime and provide service to the community.
Marine Corps Individual Reserve Support Activity (MCIRSA) The Marine Corps Individual Reserve Support Activity (MCIRSA) is a special staff section of the Force Headquarters Group, Marine Forces Reserve, that has staff cognizance for the management and administration of IRR Marines.