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The pterygoid venous plexuses

S Deplus1, D Brémond-Gignac, C Gillot

  • 1Institut d'Anatomie, UFR Biomédicale, Paris, France.

Surgical and Radiologic Anatomy : SRA
|January 1, 1996
PubMed
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The pterygoid venous plexuses, located in the infratemporal fossa, exhibit a complex, symmetrical arrangement. Their development is linked to masticatory muscles, aiding cranial cavity venous drainage.

Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Head and Neck Anatomy

Background:

  • The pterygoid venous plexuses are significant vascular networks within the infratemporal fossa.
  • Their precise arrangement and variations are crucial for understanding venous drainage pathways in the head.

Purpose of the Study:

  • To delineate the anatomical arrangement of the pterygoid venous plexuses.
  • To determine the frequency of different venous plexus types in the infratemporal fossa.
  • To explore the relationship between pterygoid venous plexuses and masticatory muscles.

Main Methods:

  • Injection of colored latex into the pterygoid venous plexuses of 10 unembalmed human subjects.
  • Detailed anatomical observation and documentation of the venous network's structure and symmetry.

Related Experiment Videos

  • Assessment of the predominant plexus patterns within the infratemporal fossa.

    • Main Results:

    • Consistent symmetry between the right and left pterygoid venous plexuses was observed.
    • A predominance of the venous layer was noted in the superior aspect of the infratemporal fossa.
    • The most frequently encountered pattern was complex and plexiform.
    • Venous plexus development correlates with masticatory muscle development.

    Conclusions:

    • The pterygoid venous plexuses display a consistent, symmetrical, and complex anatomical structure.
    • These plexuses play a role in venous drainage, potentially serving as an alternative pathway for cranial cavity drainage.
    • Masticatory muscle activity influences the drainage function of these venous plexuses.