Part 1 of Essay
is actually a collection of syndromes brought about by abnormal compression of the neurovascular bundle by bony, ligamentous or muscular obstacles between the cervical spine and the lower border of the axilla. This injury usually consists of the neurovascular bundle, the brachial plexus, and the subclavian artery and vein ....

Part 2 of Essay
.... neck injuries are seen too. Also common is repetitive stress at work by people who work on assembly lines or keyboards, or athletes such as swimmers and baseball pitchers. All of the above predisposing factors ultimately lead to the narrowing of the costoclavicular space in the shoulder. This injury is most commonly an overuse injury. This is due to the cause of the build up of scar tissue on the muscles of the neck by there being a stretching injury to the neck muscles. The tight muscles press against the nerv ....