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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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Assessment of radial pulse01:11

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Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
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Disorders of the Autonomic Nervous System01:18

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The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's...
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Assessment of apical radial pulse01:25

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
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Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

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Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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Related Experiment Video

Updated: Jun 27, 2025

Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
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Radial neuropathy.

Colin Chalk1

  • 1Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada.

Handbook of Clinical Neurology
|May 2, 2024
PubMed
Summary
This summary is machine-generated.

Radial neuropathy, a common nerve issue causing wrist drop, is often linked to trauma. Early diagnosis via electrodiagnosis and imaging aids treatment, with good recovery prospects for most patients.

Keywords:
Humerus fractureNerve traumaRadial nerveRadial neuropathyWrist drop

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Area of Science:

  • Neurology
  • Orthopedics
  • Anatomy

Background:

  • Radial neuropathy is the third most common mononeuropathy affecting the upper limb.
  • Wrist drop is a primary clinical manifestation, often simplifying lesion localization.
  • Understanding radial nerve anatomy is crucial for diagnosis.

Purpose of the Study:

  • To review the diagnosis and management of radial neuropathy.
  • To highlight the role of electrodiagnosis and advanced imaging in localization.
  • To discuss causes, prognosis, and treatment options for radial nerve injuries.

Main Methods:

  • Review of existing literature on radial neuropathy.
  • Discussion of diagnostic tools including electrodiagnosis (EMG/NCS) and nerve imaging (ultrasound, MR neurography).
  • Analysis of common and uncommon etiologies, focusing on traumatic causes.

Main Results:

  • Electrodiagnosis confirms radial neuropathy and aids lesion localization.
  • Nerve imaging is valuable, especially in non-traumatic cases.
  • Trauma is the most frequent cause, with generally favorable recovery outcomes.
  • Rehabilitation and surgical interventions can improve function in persistent cases.

Conclusions:

  • Radial neuropathy diagnosis is aided by anatomical knowledge, electrodiagnosis, and imaging.
  • While trauma is common, other causes exist and require consideration.
  • Prognosis is typically good, with effective management strategies available for functional recovery.