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Related Concept Videos

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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.
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The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
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Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves. While the first six innervate the head and neck, the latter six nerves innervate the head and neck, as well as organs and tissues in the thoracic and abdominal cavities. They facilitate communication, expression, and autonomic control within the human body.
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The sympathetic chain ganglia, also known as the sympathetic trunk ganglia or paravertebral ganglia, are a series of ganglia located bilaterally on either side of the spinal column. These ganglia serve as relay stations for the sympathetic nervous system. Preganglionic neurons originating in the spinal cord project their axons to the sympathetic chain ganglia. Within the ganglia, these preganglionic fibers synapse with postganglionic neurons.The postganglionic neurons of the sympathetic trunk...
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The anterior neck muscles are the group of muscles covering the front part of the neck. These muscles are classified into three subgroups. The first one is the superficial muscles, the most visible muscles in the front of the neck. It includes the platysma and sternocleidomastoid. The second group is the suprahyoid muscles, located above the hyoid bone. This group comprises the digastric, mylohyoid, geniohyoid, and stylohyoid. Lastly, the infrahyoid muscles are found below the hyoid bone and...
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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
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Related Experiment Video

Updated: Sep 28, 2025

The Supraclavicular Fossa Ultrasound View for Central Venous Catheter Placement and Catheter Change Over Guidewire
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The supraclavicular nerve.

Paul Seror1,2

  • 1Laboratoire d'électroneuromyographie, Paris, France.

Muscle & Nerve
|April 2, 2022
PubMed
Summary

A new, simple method for studying supraclavicular nerve (SCN) conduction was developed. This technique successfully identified SCN lesions in four patients, aiding diagnosis after neck surgery.

Keywords:
cervical plexusiatrogenic lesionlarynxneck dissectionnerve conduction studyspinal accessory nervesupraclavicular nervesurgerythyroid

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Area of Science:

  • Neurology
  • Clinical Electrophysiology

Background:

  • The supraclavicular nerve (SCN) is crucial for sensation in the neck and shoulder.
  • SCN lesions can cause neuropathic pain and hypoesthesia, often overlooked in diagnosis.
  • Accurate electrodiagnostic methods for SCN assessment are needed.

Purpose of the Study:

  • To introduce a novel, low-intensity method for studying supraclavicular nerve conduction.
  • To report the utility of this method in diagnosing SCN lesions in clinical cases.
  • To compare the efficacy of the new method with existing SCN conduction studies.

Main Methods:

  • Antidromic recording of the SCN using self-adhesive electrodes placed on the clavicle.
  • Low-intensity stimulation (<5 mA) delivered proximally with a bar electrode.
  • Participants reported sensory feedback to confirm nerve pathway and localization.

Main Results:

  • Established normative values for SCN sensory nerve action potential (SNAP) amplitude, onset latency, and side-to-side ratio in healthy subjects.
  • Absent SCN SNAP on the affected side in four patients with unilateral neuropathic hypoesthesia.
  • Patients experienced symptoms following radical neck surgery or first rib resection.

Conclusions:

  • The described method is simple, effective, and provides high SNAP amplitudes for SCN conduction studies.
  • SCN conduction studies are valuable for diagnosing rare SCN lesions, improving patient care.
  • This electrodiagnostic technique offers a better understanding of neuropathic complaints in the neck, chest, and shoulder region.