Pterygoid plexus
Pterygoid Plexus
The Pterygoid Plexus (pronunciation: ter-i-goid plek-sus) is a significant venous network located in the infratemporal fossa, deep to the temporalis muscle and lateral pterygoid muscle. It is primarily responsible for the venous drainage of the deep parts of the face.
Etymology
The term 'Pterygoid' is derived from the Greek words 'pteryx' and 'eidos', meaning 'wing' and 'form' respectively. The term 'Plexus' is derived from the Latin word 'plexus', meaning 'braid' or 'network'.
Anatomy
The Pterygoid Plexus communicates anteriorly with the facial vein through the deep facial vein, and posteriorly with the cavernous sinus through the emissary veins. It also communicates with the ophthalmic veins and the superior pharyngeal constrictor muscle.
Clinical Significance
The Pterygoid Plexus is clinically significant as it can act as a route for the spread of infection from the facial region to the cranial cavity. This is due to its communication with the cavernous sinus.
Related Terms
- Infratemporal Fossa
- Temporalis Muscle
- Lateral Pterygoid Muscle
- Facial Vein
- Cavernous Sinus
- Ophthalmic Veins
- Superior Pharyngeal Constrictor Muscle
External links
- Medical encyclopedia article on Pterygoid plexus
- Wikipedia's article - Pterygoid plexus
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