Middle layer of the deep cervical fascia

The middle layer of the deep cervical fascia is the one of the three layers of the deep cervical fascia that most closely surrounds the visceral organs. This layer consists anteriorly of the strap muscle fascia (comprised of the sterno-omohyoid and sternothyroid-thyrohyoid layers) and posteriorly of the visceral fascia (also commonly known as the buccopharyngeal fascia, particularly in the suprahyoid neck, or, less commonly, pharyngomucosal fascia) 1,2. The alternative term pretracheal fascia may refer to either the visceral fascia or the sternothyroid-thyrohyoid layer of strap muscle fascia, which lies anterior to the trachea 1,2.

Gross anatomy

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*Some sources consider these structures to have their own fascia not derived from the middle layer of the deep cervical fascia, but they are nevertheless considered part of the visceral space 2.

In addition, all layers of the deep cervical fascia contribute to the carotid sheath. However, in the suprahyoid neck, above the carotid bifurcation, the contribution of the middle layer is inconsistent 3.

Anatomy: Head and neck
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Article information

rID: 72233
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:
  • Pretracheal layer of deep cervical fascia
  • Pretracheal fascia
  • Pharyngomucosal fascia
  • Middle layer of deep cervical fascia (MLDCF)
  • Strap muscle fascia
  • Buccopharyngeal fascia
  • Visceral fascia

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