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Plexus. In neuroanatomy, a plexus (from the Latin term for "braid") is a branching network of vessels or nerves. The vessels may be blood vessels (veins, capillaries) or lymphatic vessels. The nerves are typically axons outside the central nervous system. The standard plural form in English is plexuses. [1][2][3] Alternatively, the Latin plural ...
- Nerve Plexus Locations
- Function of A Plexus of Nerves
- Plexus Injury Examples
- Diagnosing A Nerve Plexus Injury
- Nerve Plexus Treatment
- Summary
Nerve bundles forming a plexus are also located throughout your body. There are two major groups of nerve plexuses: the spinal plexus and the autonomic plexus. There are five distinct plexuses in each. They are named based on the location or function of the plexus.
A plexus of nerves can be thought of as an electrical junction box. Various nerves come together, are sorted, and then travel on to their respective muscles or anatomical structures to communicate signals to and from your brain. This has a protective effect in that if one nerve is injured, other nerves in the same plexus may be able to essentially ...
Any plexus can be injured, but we will focus on the brachial plexus as an example here. The brachial plexus of the arm is the one that is most commonly injured.This may occur due to tension and overstretching, compression, or tearing of the nerves in the plexus. An injury to the brachial plexus nerves may cause: 1. Pain 2. Weakness 3. Numbness 4. T...
Diagnosis of a brachial plexus injury typically involves a physical examination followed by a test called electromyography (EMG). During an EMG test, small needles are placed along your arm. Then, tiny electrical signals are passed between the needles. The speed at which those signals travel the nerves is measured and compared to accepted normal va...
A minor injury to a plexus may not require treatment at all. Symptoms tend to be mild and temporary, and usually go away within weeks or months. Some plexus injuries may require more intensive treatments. Treatment for a ruptured nerve may involve surgery to repair the damage. Surgery may involve: 1. A nerve transfer 2. Neurolysis (freeing nerves f...
Your body consists of a complex series of muscles, bones, tendons, and nerves. When nerves exit your spinal canal, they are sorted and organized in a plexus. This plexus serves to keep nerve signals organized and to create a system where your nerves are protected from injury. A plexus injury may cause numbness, tingling, or loss of movement. Severe...
Overview. The nervous system consists of extensive neural networks. Communication between these networks facilitates thinking, language, feeling, learning, memory, motor function and sensation. [1] Through the plasticity of our existing cells and neural stem cells, our nervous system can adapt to new situations and respond to injury.
5901. Anatomical terms of neuroanatomy. [edit on Wikidata] A nerve plexus is a plexus (branching network) of intersecting nerves. [1] A nerve plexus is composed of afferent and efferent fibers that arise from the merging of the anterior rami of spinal nerves and blood vessels. There are five spinal nerve plexuses, except in the thoracic region ...
Oct 8, 2024 · The brachial plexus is a network of nerve fibres that supplies the skin and musculature of the upper limb. It begins in the root of the neck, passes through the axilla, and runs through the entire upper extremity. The plexus is formed by the anterior rami (divisions) of cervical spinal nerves C5, C6, C7 and C8, and the first thoracic spinal ...
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A plexus is like an electrical junction box in a house. In a plexus, nerve fibers from different spinal nerves are sorted and recombined, so that all fibers going to a specific body part are put together in one nerve. The cervical plexus provides nerve connections to the head, neck, and shoulder. The brachial plexus provides connections to the ...
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3 days ago · Read chapter Appendix C of Clinical Neuroanatomy, 29e online now, exclusively on AccessMedicine. AccessMedicine is a subscription-based resource from McGraw Hill that features trusted medical content from the best minds in medicine.
