Video
This short video shows Scalene muscles and thoracic outlet in the context of “Thoracic outlet syndrome (TOS).” The neurovascular bundle passes under the pectoralis minor muscle. When this muscle is shortened or spasmed (often in poor posture with shoulders bent forward ), it compresses the structures. It also shows the areas where pain, burning or tingling may travel when a nerve structure is irritated or sensitive to movement.
The neurovascular bundle passes under the pectoralis minor muscle. When this muscle is shortened or spasmed (often in poor posture with shoulders bent forward ), it compresses the structures. The clip places this within “Thoracic outlet syndrome (TOS)” so it is easier to understand what is happening in the area, not only where symptoms are felt.
Nerve-related symptoms are not always felt where the irritation begins. The visual shows a possible symptom pathway, while movement, strength and sensitivity still need to be assessed in the individual person.
This is an educational visual linked to “Thoracic outlet syndrome (TOS).” If symptoms keep returning, restrict movement, or their source is unclear, a functional assessment is a more useful next step than guessing.