This high-yield revision note on Pterygoid Venous Plexus: Why Infections Spread to Cavernous Sinus? covers everything examiners typically test under Oral Anatomy & Histology — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Feature | Detail |
|---|---|
| Location | Between temporalis & pterygoid muscles |
| Drainage Anterior | Deep facial vein → facial vein → IJV |
| Drainage Posterior | Maxillary vein → retromandibular → EJV |
| Drainage Superior | Emissary veins via foramen ovale, lacerum → cavernous sinus |
| Valve | Valveless - bidirectional spread |
| Clinical | Cavernous sinus thrombosis, bleeding in LeFort I / tuberosity fracture |
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