Yes, of course, if the collective identity of the group is such that it seeks to challenge the legitimacy of the correctional system itself. In Texas, for example, the pre-service and in-service âgang/STG trainingâ includes information about a group called the âSelf Defense Family (SDF)â.
Click to read more below. The trapezius is one of the major muscles of the back and is responsible for moving, rotating, and stabilizing the scapula (shoulder blade) and extending the head at the neck. It is a wide, flat, superficial muscle that covers most of the upper back and the posterior of the neck.Like most other muscles, there are two trapezius muscles â a left and a right trapezius â that are symmetrical and meet at the vertebral column.he trapezius is one of the major muscles of the back and is responsible for moving, rotating, and stabilizing the scapula (shoulder blade) and extending the head at the neck.
Back Muscles. The erector spinae, the muscles of your low back, are some of the main movers during the deadlift exercise. These three muscles â the iliocastalis, the longissimus and the spinalis â run from near the base of your skull, down your back and attach to the lower vertebrae.ack Muscles. The erector spinae, the muscles of your low back, are some of the main movers during the deadlift exercise. These three muscles â the iliocastalis, the longissimus and the spinalis â run from near the base of your skull, down your back and attach to the lower vertebrae.