Pterygomandibular raphe
| Pterygomandibular raphe | |
|---|---|
medial pterygoid plate | |
| Insertion | mylohyoid line of the mandible |
| Identifiers | |
| Latin | raphe pterygomandibularis |
| TA98 | A05.3.01.102 |
| TA2 | 2178 |
| FMA | 55618 |
| Anatomical terminology] | |
The pterygomandibular raphe (pterygomandibular fold
Structure
The pterygomandibular
Relations
- Its medial surface is covered by the mucous membrane of the mouth.[3][2]
- Its lateral surface is separated from the ramus of the mandible by adipose tissue.[2]
- Its posterior border gives attachment to the superior pharyngeal constrictor muscle.[3]
- Its anterior border attaches to the posterior edge of the buccinator muscle.[3]
The pterygomandibular raphe is the common meeting point of the superior pharyngeal constrictor muscle and the buccinator muscle. This common attachment makes the raphe a junction of the oral cavity, oropharynx, and nasopharynx.[3]
The inferior alveolar nerve passes lateral to the raphe; the raphe is therefore a landmark for a nerve block of this nerve.[2]
The general location of the raphe is indicated by the pterygomandibular fold.[3]
Attachments
The pterygomandibular raphe gives attachment to the central portion of the buccinator muscle anteriorly, and to the superior pharyngeal constrictor muscle posteriorly.[2]
Variation
In
Clinical significance
When the mandible is splinted for gradual realignment (such as to treat sleep apnea), the pterygomandibular ligament slightly resists the realignment.[5]
The raphe is a landmark for administration of inferior alveolar nerve blocks.[2][3][1]
History
The pterygomandibular ligament was first noted in 1784.[3]
See also
References
- ^ ISBN 978-0-323-39634-9.
- ^ OCLC 1201341621.)
{{cite book}}: CS1 maint: location missing publisher (link - ^ .
- S2CID 36677456.
- PMID 33146716.
External links
- "Anatomy diagram: 05287.011-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2013-04-22.
