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.
What is the importance of pterygoid plexus to dentistry?
It is an important region because of the potential to spread dental infection; it can also be inadvertently penetrated when administering a block injection of the posterior superior alveolar nerve, potentially resulting in a haematoma.
What is the pterygoid plexus?
The pterygoid venous plexus is an extensive valveless plexus of veins that parallels the medial two thirds of the maxillary artery on the lateral aspect of the medial pterygoid muscle, within the infratemporal fossa. From: Head, Neck, and Orofacial Infections, 2016.
Where is the pterygoid plexus located?
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. Veins of the head and neck.
Where does pterygoid plexus drain?
The plexus itself drains via the maxillary vein before it forms the retromandibular vein. Emissary veins also anastomose between the plexus and the cavernous sinus, via the foramina ovale and lacerum.
What is the function of venous plexus?
The pampiniform venous plexus is a paired network of several small veins found within the spermatic cords of males. It functions primarily to drain the testes, epididymis, and part of the vas deferens….Pampiniform venous plexus.
| Drains from | Testicular capillaries |
|---|---|
| Drainage area | Testes, epididymis, proximal vas deferens |
What is a venous plexus?
A venous plexus is a congregation of multiple veins. Venous plexus. The veins of the right half of the male pelvis.
What is the function of the venous plexus?
The internal vertebral venous plexus provides an alternate route of venous return when the jugular veins of the neck are compressed, when the flow through the inferior vena cava is obstructed, and when intrathoracic or intraabdominal pressures are increased.
What is retromandibular vein?
The retromandibular vein is a deep facial vein that drains structures of the face, including the lateral (side) of the skull, jaw, parotid gland, and masseter muscle. It drains into the jugular veins.
Where is venous plexus located?
The posterior internal veins, which lie ventral to the vertebral arches and ligamenta flava receive veins from these structures. The external venous plexus lies outside the vertebral channel, along the surfaces of the vertebral bodies, and communicates with the internal plexus through veins in the neural foramina.
What is Batson plexus?
Batson’s venous plexus is a system of paravertebral veins that connect pelvic and thoracic vessels to the intraspinal (basivertebral) veins. It was first described in 1940 to explain a route for spread of metastases and infection that was separate to the lymphatic system.
What is venous plexus?
The uterine venous plexus includes two uterine veins. These arise from the side of the uterus, where they also connect with the vaginal and ovarian plexuses. A venous plexus is a complex set of interconnected blood vessels.