Which vein is the anastomosis between the facial vein and the pterygoid plexus?
Maxillary vein
The veins of pterygoid plexus converge on its anterior end to form the maxillary vein, which conveys the blood from the plexus into the retromandibular vein….Pterygoid venous plexus.
Drains from | Venules of the infratemporal fossa |
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Drains to | Maxillary vein |
What is the clinical significance of the pterygoid plexus?
A clinically significant attribute of the pterygoid plexus is its communication with the cavernous sinus, the inferior ophthalmic vein, and the facial vein. Due to these communications, one must be aware of the potential to spread infection through the venous system into the cranial cavity.
Where is the maxillary vein located?
mandible
The maxillary vein lies deep to the neck of the mandible and runs a short course before forming the retromandibular vein.
What is venous plexus?
The vertebral venous plexus is a highly anastomotic network of valveless veins running along the entire length of the vertebral column from the foramen magnum to the sacral hiatus.
How is Pterygoid plexus formed?
The pterygoid venous plexus (plural: plexuses) is a small intercommunicating cluster of venules that is intimately related to the lateral pterygoid muscle, lying both intramuscularly and around the muscle. The plexus is formed by very small veins that are the venous counterparts to the branches of the maxillary artery.
How maxillary vein is formed?
It is formed by a confluence of the veins of the pterygoid plexus, and passes backward between the sphenomandibular ligament and the neck of the mandible, and unites with the superficial temporal vein to form the retromandibular vein.
Where is infratemporal fossa located?
The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus and many important nerves and vessels traverse it. It lies below the skull base, between the pharyngeal sidewall and ramus of the mandible.
What is the purpose of a venous plexus?
The venous plexuses of the spinal canal lie in the epidural space to form a network and can be subdivided into: 1. A pair of ventral venous plexuses lying on either side of the dorsal longitudinal ligament of the vertebra, into which the basivertebral veins drain.
Where is the venous plexus of the pterygoid?
The pterygoid venous plexus is a venous network that surrounds the pterygoid segment of the maxillary artery. It is located within the infratemporal fossa, lying partly between temporal and lateral pterygoid muscle, and partly between the lateral and medial pterygoid muscles.
What are the emissary veins of the pterygoid?
Emissary veins also anastomose between the plexus and the cavernous sinus, via the foramina ovale and lacerum. The veins of the pterygoid plexus have valves, and the plexus acts as a small pump assisting the return of blood by the contractions of the lateral pterygoid muscle.
Where is the plexus located in the body?
The pterygoid plexus ( / ˈtɛrɪɡɔɪd /; from Greek pteryx, “wing” and eidos, “shape”) 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.
Where are the veins located in the uterine plexus?
The vaginal plexus is a grouping of veins located within the vaginal walls, and blood from the vaginal plexus travels through the internal pudenal veins into the internal iliac veins. The veins that make up the uterine plexus are located around the uterus.