Sublingual space

The sublingual spaces are paired suprahyoid deep spaces of the head and neck located below the tongue.

Gross anatomy

The sublingual space is a part of the floor of mouth 1.

As the sublingual space is not bounded by fascia posteriorly, some authors consider the sublingual space a component of the submandibular space 2. More commonly, however, the sublingual and submandibular spaces are discussed separately 3-5.

Each sublingual space communicates with contralateral sublingual space via a small isthmus just below the frenulum.

Boundaries

It is like an inverted V with its apex pointing anteriorly and is located between:

Contents

Related pathology

Anatomy: Head and neck
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Article information

rID: 34572
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:

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Cases and figures

  • Sublingual space: annotated MRI
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