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词条 Investing layer of deep cervical fascia
释义

  1. Attachments

  2. Tracings

  3. Existence

  4. References

  5. External links

{{Infobox anatomy
| Name = Investing layer of deep cervical fascia.
| Latin = Lamina superficialis fasciae cervicalis
| Image = Gray384.png
| Caption = Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli.
| Image2 =
| Caption2 =
| Precursor =
| System =
| Artery =
| Vein =
| Nerve =
| Lymph =
}}

The Investing layer of deep cervical fascia is the most superficial part of the deep cervical fascia, and it encloses the whole neck.

Attachments

It surrounds the neck like a collar, it splits around the sternocleidomastoid muscle and the trapezius muscle. It is attached as;

  • Posteriorly - Ligamentum nuchae
  • Anteriorly - Attached to the hyoid bone
  • Superiorly - (from backwards to forwards);
    • External occipital protuberance and Superior nuchal line of occipital bone
    • Mastoid process of Temporal bone
    • External acoustic meatus
    • Lower margin of the zygomatic arch
    • Lower border of body of mandible from the angle of mandible to the symphysis menti
  • Inferiorly - (from backwards to forwards);
    • Spine and acromial process of scapula
    • Upper surface of the clavicle
    • Suprasternal notch of manubrium sterni[1]

Tracings

  • Horizontal extent - From ligamentum nuchae when traced forward, the fascia splits and encloses trapezius, reunites and form roof of posterior triangle of neck; again splits and encloses sternocleidomastoid, reunites and forms the roof of anterior triangle.
  • Vertical extent -
    • Superior tracing - It splits and encloses submandibular gland and parotid gland;
        - It splits at lower border of submandibular gland into superficial and deep layers;which attach to lower body of body of mandible and mylohyoid line of mandible  - It splits at lower pole of parotid gland into superficial and deep layers; superficial layer attaches to zygomatic arch and forms parotido-masseteric fascia after blending with masseter, deep layer attaches to tympanic plate and styloid process forming the stylomandibular ligament
    • Inferior tracing - The fascia splits to enclose two spaces; suprasternal space and supraclavicular space[2]

Existence

It is considered by some sources to be incomplete[3] or nonexistent.[4]

References

{{Gray's}}
1. ^{{cite book|last=Dutta|first=Asim Kumar|title=Essentials of Human Anatomy Head & Neck|year=2013|publisher=Current books international|location=kolkata|isbn=978-81-86793-79-4|pages=126}}
2. ^{{cite book|last=Dutta|first=Asim Kumar|title=Essentials of Human Anatomy Head & Neck|year=2013|publisher=Current books international|location=kolkata|isbn=978-81-86793-79-4|pages=126–128}}
3. ^{{cite journal |vauthors=Zhang M, Lee AS |title=The investing layer of the deep cervical fascia does not exist between the sternocleidomastoid and trapezius muscles |journal=Otolaryngol Head Neck Surg |volume=127 |issue=5 |pages=452–4 |year=2002 |pmid=12447241 |doi=10.1067/mhn.2002.129823 |url=http://linkinghub.elsevier.com/retrieve/pii/S0194599802002279}}
4. ^{{cite journal |vauthors=Nash L, Nicholson HD, Zhang M |title=Does the investing layer of the deep cervical fascia exist? |journal=Anesthesiology |volume=103 |issue=5 |pages=962–8 |year=2005 |pmid=16249670 |doi= 10.1097/00000542-200511000-00010|url=http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0003-3022&volume=103&issue=5&spage=962}}

External links

  • [https://web.archive.org/web/20060515201710/http://iris3.med.tufts.edu/headneck/sagital.htm Sagittal Section Showing Deep Cervical Fascial Layers]
  • [https://web.archive.org/web/20060515201312/http://iris3.med.tufts.edu/headneck/infrl.htm Infrahyoid Cross-Section Showing Layers of Deep Cervical Fascia]
  • [https://web.archive.org/web/20060515201222/http://iris3.med.tufts.edu/headneck/supr.htm Suprahyoid Cross-Section Showing Layers of Deep Cervical Fascia ]
{{Neck general}}{{Portal bar|Anatomy}}{{Authority control}}

1 : Fascial spaces of the head and neck
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