What Is The Function Of The Pterygoid Plexus?

The pterygoid plexus functions to return the blood to the heart; this occurs during the movement of the lateral pterygoid, generating a pumping action of the blood back to the heart.

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 pterygoid venous plexus is 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.

Does pterygoid plexus drain into cavernous sinus?

The superior ophthalmic vein drains directly into the cavernous sinus through the superior orbital fissure. … The pterygoid plexus communicates with the cavernous sinus through the foramina ovale, spinosum, and rotundum.

Where is pterygoid venous plexus located?

Veins of the head and neck. 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 does prostatic venous plexus drain?

The receipt of blood from the vesical and prostatic rami connect the prostatic plexus to the vesical plexus and internal pudendal vein. The prostatic plexus then drains into the vesical and internal iliac veins.

What is prostatic venous plexus?

The prostatic venous plexus is a network of small veins that surrounds and drains the prostate gland of the male pelvis. … The prostatic plexus also receives the deep dorsal vein of penis as a tributary, that drains the venous blood from the deep structures of the penis.

Which plexus drains the ovaries?

In females, the pampiniform plexus drains the ovaries. The right ovary drains from the plexus to the ovarian vein and then to the inferior vena cava.

What is Pterygoid bone?

The pterygoid bone is a flat and thin lamina, united to the medial side of the pterygoid process of the sphenoid bone, and to the perpendicular lamina of the palatine bone. … -a ventral extremity, free and protruding, that has a strong prolongation bended caudally: the pterygoid hook.

Where is the pterygoid process?

Two pairs of bony plates, the pterygoid processes, arise from the base of each alisphenoid bone. The outer plates are nearly horizontal in position. They extend from the posterior end of the maxillary bone caudad and laterad to the lateral surface of the tympanic bulla.

What are Pterygoids?

The pterygoid muscles are two of the four muscles of mastication, located in the infratemporal fossa of the skull. These muscles are: lateral pterygoid and medial pterygoid. The primary function of the pterygoid muscles is to produce movements of the mandible at the temporomandibular joint.

What is medial pterygoid?

The medial pterygoid muscle, a major elevator of the jaw is a square-shaped masticatory muscle, located on the medial aspect of the lower jaw bilaterally. It is also known as internal pterygoid muscle. This muscle lies medial to the lateral pterygoid muscle.

What is the venous drainage of the face?

The Internal jugular vein, the anterior jugular vein, and the external jugular vein are responsible for the venous drainage of the face (and of the head and neck in general).

Where does ophthalmic vein pass through?

The vein runs posteriorly, passing under the eyeball and over the surface of the inferior rectus muscle. The inferior ophthalmic vein courses through the superior orbital fissure, just below the common tendinous ring (annulus of Zinn).

What is Batson plexus?

Anatomical terminology. The Batson venous plexus (Batson veins) is a network of valveless veins in the human body that connect the deep pelvic veins and thoracic veins (draining the inferior end of the urinary bladder, breast and prostate) to the internal vertebral venous plexuses.

What is removed in a prostatectomy?

The main type of surgery for prostate cancer is a radical prostatectomy. In this operation, the surgeon removes the entire prostate gland plus some of the tissue around it, including the seminal vesicles.

What is the dorsal venous plexus?

The dorsal venous network of the hand is a network of veins within the superficial fascia on the dorsum (backside) of hand. It is formed by the dorsal metacarpal veins, and gives rise to veins such as the cephalic vein and the basilic vein.

What is the clinical significance of drainage from the prostatic venous plexus?

The prostatic venous plexus drains into the internal iliac vein which connects with the vertebral venous plexus, this is thought to be the route of bone metastasis of prostate cancer. It is sometimes known as “Santorini’s plexus,” named for the Italian anatomist Giovanni Domenico Santorini.

What nerves control the prostate?

The prostate gland receives sympathetic input via the hypogastric nerve and parasympathetic input via the pelvic nerve. In addition, the hypogastric and pelvic nerves also provide sensory inputs to the gland.

What does Pterygoid plexus drain?

The pterygoid plexus drains many deep structures of the head, including the palate, nasal cavity, paranasal sinuses, nasopharynx, auditory tube and deep parts of the scalp in the temporal region. It is continued by a short maxillary vein, which lies deep to the neck of the mandible.

What is ophthalmic vein?

Ophthalmic veins are veins which drain the eye. More specifically, they can refer to: Superior ophthalmic vein. Inferior ophthalmic vein.