there are four types/locations of possible thoracic outlet syndrome seen here

Thoracic Outlet Syndrome

Thoracic outlet syndrome is a condition that causes compression of nerves and/or blood vessels where the thorax outlets into the upper extremity.

Rectus Capitis Posterior Minor Can Give You a Headache

The rectus capitis posterior minor (RCPMin) is, clinically, one of the more important muscles in the human body, so it is especially important for manual therapists to be conversant with this muscle so that effective palpation assessment and massage and stretching treatment can be performed.

Transversospinalis in the Laminar Groove

The transversospinalis musculature is extremely important functionally, and important with pain and dysfunction. It includes the multifidus, the thickest muscle of the low back; and the semispinalis capitis, the thickest muscle in the back of the neck. When working this musculature, it is extremely important to work very far medially, over the laminar groove of the spine.

herniated disc with compression of the spinal nerve in the intervertebral foramen

Pathologic Disc Conditions of the Neck

The danger with a disc bulge or herniation is that the disc can compress the spinal nerve within the intervertebral foramen, causing a pinched nerve.

posterior glide / translation motion of the spine

Motions of the Cervical Spine

Table 1 shows average healthy ranges of axial motion of the cervical spine (head and neck), from the atlanto-occipital joint through the C7-T1 joint.

Teres Major – Lat’s Big Brother

The teres major is a muscle that often does not get the respect it deserves because it is next to the more well-known latissimus dorsi (lat). The lat might cover a larger surface area of the body, but in the posterior axillary fold of tissue, the teres major is actually quite a bit larger than the lat. For this reason, I like to call the teres major “the lat’s big brother”.