This quick video discussing how to loosen up the cervicothoracic (CT) region. I have other videos that may also be useful involving the neck, so check those out too for more help.
Images taken from:
-my book (also on my website)
-Travell and Simons' Myofascial Pain and Dysfunction (1983)
-Veritas Health (check this out for more anatomy information and some animations): www.spine-health.com/video/spinal-motion-segment-c7-t1-cervicothoracic-junction-animation
Check out triggerpoints.net for more trigger point maps.