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Deep cervical fascia
The deep cervical fascia (or fascia colli in older texts) lies under cover of the Platysma, and invests the neck; it also forms sheaths for the carotid vessels, and for the structures situated in front of the vertebral column.
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The investing portion of the fascia is attached behind to the ligamentum nuchæ and to the spinous process of the seventh cervical vertebra.
Opposite the angle of the mandible the fascia is very strong, and binds the anterior edge of the Sternocleidomastoideus firmly to that bone.
Between the mandible and the mastoid process it ensheathes the parotid gland—the layer which covers the gland extends upward under the name of the parotideomasseteric fascia and is fixed to the zygomatic arch.
From the part which passes under the parotid gland a strong band extends upward to the styloid process, forming the stylomandibular ligament.
Two other bands may be defined: the sphenomandibular and the pterygospinous ligaments.
The pterygospinous ligament stretches from the upper part of the posterior border of the lateral pterygoid plate to the spinous process of the sphenoid.
It occasionally ossifies, and in such cases, between its upper border and the base of the skull, a foramen is formed which transmits the branches of the mandibular nerve to the muscles of mastication.
Below, the fascia is attached to the acromion, the clavicle, and the manubrium sterni.
Some little distance above the last it splits into two layers, superficial and deep.
The former is attached to the anterior border of the manubrium, the latter to its posterior border and to the interclavicular ligament.
Between these two layers is a slit-like interval, the suprasternal space (space of Burns); it contains a small quantity of areolar tissue, the lower portions of the anterior jugular veins and their transverse connecting branch, the sternal heads of the Sternocleidomastoidei, and sometimes a lymph gland.
The fascia which lines the deep surface of the Sternocleidomastoideus gives off the following processes:
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Deep_cervical_fascia". A list of authors is available in Wikipedia.|