Infraorbital plexus

Infraorbital Plexus

The Infraorbital Plexus is a network of nerves found in the face, specifically in the infraorbital region. It is a part of the Maxillary nerve, which is itself a branch of the Trigeminal nerve. The Infraorbital Plexus provides sensory innervation to the midface, including the lower eyelid, upper lip, and the cheek.

Etymology

The term "Infraorbital Plexus" is derived from Latin. "Infra" means below, "orbital" refers to the eye socket, and "plexus" is used to describe a network of nerves or vessels in the body.

Anatomy

The Infraorbital Plexus is formed by the infraorbital nerve, a branch of the maxillary nerve, which is the second branch of the trigeminal nerve. The infraorbital nerve exits the infraorbital foramen, a small hole in the maxilla (upper jaw bone), to form the infraorbital plexus. This plexus innervates the lower eyelid, the side of the nose, and the upper lip.

Clinical Significance

Due to its location and the areas it innervates, the Infraorbital Plexus can be affected by various medical conditions and procedures. For instance, trauma to the midface can potentially damage the plexus, leading to sensory loss in the areas it supplies. Additionally, in certain surgical procedures of the midface, the Infraorbital Plexus may need to be anesthetized to ensure patient comfort.

Related Terms

• Infraorbital nerve
• Maxillary nerve
• Trigeminal nerve
• Infraorbital foramen

See Also

• Nervous system
• Facial anatomy

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