The Muscle Layers of the Spinal Column

There are five layers of overlying muscles covering the bones of the spine.  These interlacing and overlying muscles vary in size and direction, complicating our analysis.  Furthermore, the majority of muscles that are useful for listing interpretation are deep within the spinal muscles and relatively small and thin.

This does not necessitate a heavy touch, on the contrary; a fine variation of fibers is indicative of the working muscle and a light palpation pressure on the surface of these layers yields the clearest touch perception.  Directly, this subtle "inconsistency" within the muscle layers is the means of recognition of a working muscle.

In realizing the muscle stratification of the spine, it becomes evident that the student must be familiar with the sensation involved with each area of the spine to be studied.  Only his intimate acquaintance with the palpation of each region will allow the student to distinguish a variation in the issues or more specifically a contrasting working muscle.