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.
The new cards will look basically the same, but will have a unique DoD Identification number in place of the SSN. For those eligible for benefits, such as health care, a DoD Benefits number (DBN) will be on the back.