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Related Concept Videos

Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
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Spinal Nerves: Plexus II01:21

Spinal Nerves: Plexus II

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The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
The Lumbar Plexus
The lumbar plexus is situated within the lumbar region of the back and is primarily formed by the first four lumbar spinal nerves (L1 to L4). This plexus extends its branches into several nerves, including the...
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Nerve Supply of the GI Tract01:27

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The neuronal supply to the gastrointestinal (GI) tract is essential for regulating various functions, including digestion, absorption, and movement of food. This intricate network of nerves is known as the enteric nervous system (ENS), often referred to as the "second brain" of the body.
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Peripheral Nervous System: Ganglia and Nerves01:24

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The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports...
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Spinal Nerves: Anatomy01:23

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Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
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The Spinal Cord01:54

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The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
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Nerve Plexus Anatomy 101.

Gabriel Swenson1, Emily James1, Merve Ozen2

  • 1Department of Radiology, Mayo Clinic Arizona, Phoenix, Arizona.

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Summary
This summary is machine-generated.

This article details the anatomy and function of major human nerve plexuses, including the cervical, brachial, abdominal, lumbar, and sacral plexuses. Understanding these peripheral nervous system networks is crucial for diagnosing and treating neurological disorders.

Keywords:
anatomyinterventional radiologynerve blocknerve plexusneurolysis

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Area of Science:

  • Anatomy and Physiology
  • Neuroscience
  • Peripheral Nervous System

Background:

  • Nerve plexuses are intricate networks of nerves crucial for peripheral nervous system function.
  • Understanding their structure is vital for medical professionals.

Purpose of the Study:

  • To provide a comprehensive overview of the anatomy and function of major human nerve plexuses.
  • To detail the spinal origins, locations, and innervation areas of key plexuses.

Main Methods:

  • Detailed anatomical examination of the cervical, brachial, abdominal, lumbar, and sacral nerve plexuses.
  • Review of existing literature on nerve plexus structure and function.

Main Results:

  • The article outlines the specific anatomical features and functional roles of the major spinal nerve plexuses.
  • It highlights the interconnectedness of these networks within the peripheral nervous system.

Conclusions:

  • A thorough understanding of nerve plexus anatomy is essential for accurate diagnosis and effective treatment of neurological conditions.
  • This knowledge aids interventionalists in managing disorders affecting the peripheral nervous system.