A Neurovascular bundle is a term applied to the body nerves, arteries, veins and lymphatics that tend to travel together in the body. As arteries do not travel within the superficial fascia

Superficial fascia

Superficial fascia is found in the subcutis in most regions of the body, blending with the reticular layer of the dermis. It is present on the face, over the upper portion of the sternocleidomastoid, at the nape of the neck, and overlying the sternum. It is mainly loose areolar connective tissue...

 (loose connective tissue

Connective tissue

"Connective tissue" is a fibrous tissue. It is one of the four traditional classes of tissues . Connective Tissue is found throughout the body.In fact the whole framework of the skeleton and the different specialized connective tissues from the crown of the head to the toes determine the form of...

 under the skin), superficial neurovascular bundles differ from deep neurovascular bundles in both composition and function. For example, in Thoracic Outlet Syndrome

Thoracic outlet syndrome

Thoracic outlet syndrome is a syndrome involving compression at the superior thoracic outlet involving compression of a neurovascular bundle passing between the anterior scalene and middle scalene...

, the neurovascular bundle containing the Subclavian Artery

Subclavian artery

In human anatomy, the subclavian arteries are two major arteries of the upper thorax , below the clavicle . They receive blood from the top of the aorta...

 and the Brachial Plexus

Brachial plexus

The brachial plexus is a network of nerve fibers, running from the spine, formed by the ventral rami of the lower four cervical and first thoracic nerve roots...

are compressed.