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.
Personnel must have a Common Access Card (CAC) in order to register for the AF Portal. This is consistent with DoD policy requiring all personnel to have a CAC by April 2004. Personnel who do not have a CAC should follow local procedures of their servicing MPF to obtain a CAC.