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. In addition to its use as an ID card, a CAC is required for access to buildings and government computer networks. A common access card (CAC) is a Unites States. Department of Defense (DoD) smart card.