Basilar plexus

Basilar Plexus

The Basilar Plexus is a network of veins located in the human body. It is situated at the base of the skull, specifically in the clivus, a part of the cranial base. The basilar plexus is connected to several other veins and plexuses, including the internal vertebral venous plexuses, cavernous sinus, and petrosal sinus.

Etymology

The term "basilar" is derived from the Latin word "basis", which means "base". The term "plexus" comes from the Latin word "plexus", which means "braid" or "network". Thus, "basilar plexus" can be interpreted as a network at the base.

Anatomy

The basilar plexus is located in the clivus, a depression in the cranial base. It is formed by the confluence of several small veins that drain the clivus. The basilar plexus communicates anteriorly with the cavernous sinus through the foramen lacerum, and posteriorly with the internal vertebral venous plexuses through the foramen magnum. It also communicates laterally with the petrosal sinus.

Function

The primary function of the basilar plexus is to drain blood from the clivus and surrounding structures. It serves as a pathway for blood to return to the heart, helping to maintain the body's circulatory system.

Clinical Significance

Due to its location and connections, the basilar plexus can be involved in several pathological conditions. For instance, it can serve as a route for the spread of infections or tumors from the head to the spine or vice versa. Understanding the anatomy of the basilar plexus can be crucial in the diagnosis and treatment of such conditions.

Related Terms

• Clivus
• Cavernous sinus
• Petrosal sinus
• Internal vertebral venous plexuses
• Foramen lacerum
• Foramen magnum

Basilar plexus Resources
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