Pterygoid plexus

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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

External links

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