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.
The Marine Corps possesses organic ground and air combat elements, and relies upon the US Navy to provide sea combat elements to fulfill its mission as âAmericaâs 9-1-1 Forceâ. Ground combat elements are largely contained in three Marine Expeditionary Forces, or âMEFâsâ.