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Related Concept Videos

Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

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...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
Muscles that Move the Arm01:31

Muscles that Move the Arm

Nine muscles are involved in arm movements. Two of these, the pectoralis major and latissimus dorsi, originate from the axial skeleton and are called axial muscles. The other seven originate from the scapula and are called the scapular muscles.
The pectoralis major has two origins. Its clavicular head originates on the medial half of the clavicle. In contrast, the sternocostal head originates on the costal cartilages of ribs 1-6, the sternum, and the aponeurosis of the external oblique of the...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
Arteries of the Upper Limbs01:12

Arteries of the Upper Limbs

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...
Muscles of the Shoulder01:23

Muscles of the Shoulder

The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...

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Related Experiment Video

Updated: Jun 8, 2026

Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome
06:57

Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome

Published on: September 13, 2020

Suprascapular neuropathy.

Robert E Boykin1, Darren J Friedman, Laurence D Higgins

  • 1Harvard Shoulder Service, Massachusetts General Hospital, 55 Fruit Street, Yawkey Center for Outpatient Care, Suite 3200, 3G, Room 3-046, Boston, MA 02114, USA.

The Journal of Bone and Joint Surgery. American Volume
|October 8, 2010
PubMed
Summary
This summary is machine-generated.

Suprascapular neuropathy, a common cause of shoulder pain, is increasingly diagnosed. Treatment ranges from conservative measures to surgery for nerve compression, but more data is needed for complex cases.

Related Experiment Videos

Last Updated: Jun 8, 2026

Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome
06:57

Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome

Published on: September 13, 2020

Area of Science:

  • Orthopedics
  • Neurology
  • Sports Medicine

Background:

  • Suprascapular neuropathy is an underdiagnosed cause of shoulder pain.
  • Its prevalence may be increasing due to more frequent diagnoses.
  • Potential causes include repetitive overhead activities, rotator cuff tears, and nerve compression.

Purpose of the Study:

  • To review the etiology, diagnosis, and management of suprascapular neuropathy.
  • To highlight the role of imaging and electrodiagnostic studies.
  • To discuss current and potential future treatment strategies.

Main Methods:

  • Review of current literature on suprascapular neuropathy.
  • Discussion of diagnostic modalities including MRI and EMG/NCS.
  • Analysis of nonoperative and operative treatment approaches.

Main Results:

  • Magnetic resonance imaging (MRI) aids in identifying causative lesions and rotator cuff pathology.
  • Electromyography (EMG) and nerve conduction velocity (NCV) studies are diagnostic standards, though reliability data is limited.
  • Nonoperative treatment is standard for isolated cases; surgery is indicated for nerve compression or progressive symptoms.

Conclusions:

  • Suprascapular neuropathy requires consideration in shoulder pain evaluation.
  • Accurate diagnosis relies on a combination of clinical findings and electrodiagnostic tests.
  • Further research is needed to optimize treatment, especially regarding concomitant nerve decompression in specific etiologies.