bands of smooth muscle cells connected to each hair follicle to the papillary layer of the dermis that when contracted the hair follice is pulled uprights(created goose bumps).
Common Access Card (CAC) The CAC, a smart card about the size of a credit card, is the standard identification for active duty uniformed service personnel, Selected Reserve, DoD civilian employees, and eligible contractor personnel.
A common access card (CAC) is a Unites States Department of Defense (DoD) smart card for multifactor authentication. CACs are issued as standard identification for active-duty military personnel, reserve personnel, civilian employees, non-DoD government employees, state employees of the National Guard and eligible contractor personnel.