The mandibulo-stylohyoid ligament (tractus angularis).

The authors of the present study were able to expose the tractus angularis (the mandibulo-stylohyoid ligament), which was consistently found as a large ligament extending from the angle of the mandible to the stylohyoid ligament, with prolongations in the direction of the stylohyoid m. and the posterior belly of the digastric. The ligament forms part of the structures which separate the submandibular gland from the parotid gland. We believe that this ligament should be included in anatomy textbooks, and we affirm our perception of these structures as potentially important for clinical and surgical anatomy.