- The most superficial Deep Fascial Layer
- Surrounds the structures of the neck
- Lies between the superficial cervical fascia and the muscles
- Splits into superficial and deep layers to enclose trapezius, SCM, submandibular gland and fibrous capsule of parotid gland
- Covers the posterior as well as the anterior triangle of the neck
- Superiorly it attaches to
- Superior nuchal line of occipital bone (a)
- Spinous processes of cervical vertebrae and nuchal ligament(b)
- Mastoid processes of temporal bones(c)
- Zygomatic arches(d)
- Inferior border of mandible(e)
- Hyoid bone(f)
- Inferiorly it attaches to
- Manubrium(g)
- Clavicles(h)
- Acromion(i)
- Continuous posteriorly with periosteum covering C7 spinous process and ligamentum nuchae – an extension of the supraspinous ligament that forms a median fibrous septum between the muscles of the two sides of the neck
- Just above the sternum this layer splits around the anterior and posterior surfaces of the manubrium forming the Suprasternal Space (k). Contains the anterior jugular veins
- Folds to form the stylomandibular ligament(j)
