Investing layer of deep cervical fascia
| Investing layer of deep cervical fascia | |
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| Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. | |
| Latin | lamina superficialis fasciae cervicalis |
| Gray's | subject #111 388 |
The Investing layer of deep cervical fascia is the most superficial part of the deep cervical fascia, and it encloses the whole neck.
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[edit] Position
It surrounds the neck like a collar, it splits around the sternocleidomastoid muscles & trapezius muscles. Posteriorly, it blends with ligamentum nuchae.
Anteriorly, it is attached to the hyoid bone. Superiorly, it attaches to the lower border of mandible, to the mastoid process, superior nuchal line, and the external occipital protuberance.
Between the angle of the mandible and the tip of mastoid process it is strong & splits to enclose the parotid gland. The superficial parts extend superiorly as the parotidomassetric fascia & reaches the zygomatic process. The deepest part extends to the base of the skull, between the styloid process & the angle of mandible is thickened to form the stylomandibular ligament. Inferiorly, the investing layer of deep cervical fascia is attached to the spine & acromion of the scapula, the clavicle with trapezius muscle, the clavicle & manubrium of the sternum with sternomastoid muscle.
[edit] Existence
It is considered by some sources to be incomplete[1] or nonexistent.[2]
[edit] References
- ^ Zhang M, Lee AS (2002). "The investing layer of the deep cervical fascia does not exist between the sternocleidomastoid and trapezius muscles". Otolaryngol Head Neck Surg 127 (5): 452–4. doi:10.1067/mhn.2002.129823. PMID 12447241. http://linkinghub.elsevier.com/retrieve/pii/S0194599802002279.
- ^ Nash L, Nicholson HD, Zhang M (2005). "Does the investing layer of the deep cervical fascia exist?". Anesthesiology 103 (5): 962–8. doi:10.1097/00000542-200511000-00010. PMID 16249670. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0003-3022&volume=103&issue=5&spage=962.
[edit] External links
- Sagittal Section Showing Deep Cervical Fascial Layers
- Infrahyoid Cross-Section Showing Layers of Deep Cervical Fascia
- Suprahyoid Cross-Section Showing Layers of Deep Cervical Fascia
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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