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The mandibulo-stylohyoid ligament (tractus angularis).

M S Jovanovic1

  • 1Department of Anatomy, Faculty of Medicine, Laval University, Ste-Foy, Québec, Canada.

Surgical and Radiologic Anatomy : SRA
|January 1, 1990
PubMed
Summary
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Researchers identified the tractus angularis, a significant ligament connecting the mandible to the stylohyoid ligament. This ligament plays a role in separating key salivary glands and holds clinical importance.

Area of Science:

  • Anatomy
  • Surgical Anatomy

Background:

  • The tractus angularis, or mandibulo-stylohyoid ligament, is a distinct anatomical structure.
  • Its precise anatomical course and relationships have not been extensively detailed in anatomical literature.

Purpose of the Study:

  • To describe the anatomical characteristics of the tractus angularis.
  • To highlight its potential significance in clinical and surgical contexts.

Main Methods:

  • Surgical dissection to expose and identify the tractus angularis.
  • Detailed anatomical description of its origin, insertion, and relations.

Main Results:

  • The tractus angularis was consistently identified as a large ligament extending from the mandibular angle to the stylohyoid ligament.

Related Experiment Videos

  • It shows prolongations towards the stylohyoid muscle and the posterior belly of the digastric muscle.
  • This ligament contributes to the separation between the submandibular and parotid glands.

    • Conclusions:

    • The tractus angularis is a significant anatomical entity that warrants inclusion in anatomy textbooks.
    • Understanding this ligament is crucial for clinical and surgical procedures involving the head and neck region.