tmj

The Sternocleidomastoid lends itself to some of the most interesting myofascial syndromes and is a prime example of how trigger points can sometimes give rise to the most multifarious misdiagnoses.

The muscle, as its name tells us, consists of two divisions, one external and anterior that inserts at the Sternum and Clavicle, and the other, posterior and internal that attaches to the Clavicle. The common origin of the muscle is in the Mastoid process.