Pterygoid plexus: Difference between revisions
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{{Infobox Vein | |
{{Infobox Vein | |
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Name = Pterygoid plexus | |
Name = Pterygoid plexus | |
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Latin = Plexus venosus pterygoideus, < |
Latin = Plexus venosus pterygoideus, <br>plexus pterygoideus | |
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GraySubject = 167 | |
GraySubject = 167 | |
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GrayPage = 645 | |
GrayPage = 645 | |
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The '''pterygoid plexus''' is a [[venous plexus]] of considerable size, and is situated between the [[temporalis muscle]] and [[lateral pterygoid muscle]], and partly between the two pterygoid muscles. |
The '''pterygoid plexus''' is a [[venous plexus]] of considerable size, and is situated between the [[temporalis muscle]] and [[lateral pterygoid muscle]], and partly between the two pterygoid muscles. |
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==Tributaries received== |
==Tributaries received== |
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It receives tributaries corresponding with the branches of the [[maxillary artery]]. |
It receives tributaries corresponding with the branches of the [[maxillary artery]]. |
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Thus it receives the following veins: |
Thus it receives the following veins: |
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[[Category:Veins of the head and neck]] |
[[Category:Veins of the head and neck]] |
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{{circulatory-stub}} |
{{circulatory-stub}} |
Revision as of 14:10, 21 June 2013
Pterygoid plexus | |
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Details | |
Drains to | Maxillary vein |
Artery | Maxillary artery |
Identifiers | |
Latin | Plexus venosus pterygoideus, plexus pterygoideus |
TA98 | A12.3.05.036 |
TA2 | 4836 |
FMA | 50944 |
Anatomical terminology |
The pterygoid plexus is a venous plexus of considerable size, and is situated between the temporalis muscle and lateral pterygoid muscle, and partly between the two pterygoid muscles.
Tributaries received
It receives tributaries corresponding with the branches of the maxillary artery.
Thus it receives the following veins:
- sphenopalatine
- middle meningeal
- deep temporal (anterior & posterior)
- pterygoid
- masseteric
- buccinator
- alveolar
- some palatine veins (palatine vein which divides into the greater and lesser palatine v.)
- a branch which communicates with the ophthalmic vein through the inferior orbital fissure
- infraorbital vein
Relations
This plexus communicates freely with the anterior facial vein; it also communicates with the cavernous sinus, by branches through the foramen Vesalii, foramen ovale, and foramen lacerum. Due to its communication with the cavernous sinus, infection of the superficial face may spread to the cavernous sinus, causing cavernous sinus thrombosis. Complications may include edema of the eyelids, conjunctivae of the eyes, and subsequent paralysis of cranial nerves which course through the cavernous sinus.
The pterygoid plexus of veins becomes the maxillary vein. The maxillary vein and the superficial temporal vein later join to become the retromandibular vein. The posterior branch of the retromandibular vein and posterior auricular vein then form the external jugular vein, which empties into the subclavian vein.
References
External links
- Anatomy photo:27:13-0100 at the SUNY Downstate Medical Center - "Infratemporal Fossa: The Pterygoid Plexus of Veins"
- Pterygoid Plexus
This article incorporates text in the public domain from page 645 of the 20th edition of Gray's Anatomy (1918)