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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

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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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Arteries of the Upper Limbs01:12

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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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Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction
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A two trunked brachial plexus: a case report.

Rajan Kumar Singla1, Ravi Kant Sharma, Bhagya Shree

  • 1Additional Professor, Department of Anatomy, Government Medical College , Amritsar-143001, Punjab, India .

Journal of Clinical and Diagnostic Research : JCDR
|June 5, 2013
PubMed
Summary
This summary is machine-generated.

A rare two-trunked brachial plexus variation was found during dissection. This anatomical anomaly, involving the C5-T1 spinal nerves, is crucial for surgeons and clinicians.

Keywords:
Brachial plexusCordsRootsTrunks

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Area of Science:

  • Anatomy
  • Morphology

Background:

  • The brachial plexus, formed by spinal nerves C5-T1, is vital for upper limb innervation.
  • Anatomical variations can impact clinical practice and surgical procedures.

Purpose of the Study:

  • To document and describe a rare variant pattern of the brachial plexus.
  • To highlight the clinical significance of brachial plexus anatomical variations.

Main Methods:

  • Routine undergraduate cadaveric dissection of the right upper limb.
  • Comparative analysis with the contralateral (left) brachial plexus anatomy.

Main Results:

  • A two-trunked brachial plexus variant was identified on the right side.
  • The variant involved fusion of C5-C6 into the upper trunk and C7-C8-T1 into the lower trunk.
  • The left brachial plexus exhibited the typical anatomical pattern.

Conclusions:

  • Brachial plexus variations, such as the described two-trunked pattern, are clinically relevant.
  • Understanding these variations is essential for accurate diagnosis, surgical planning, and nerve block procedures.
  • This finding contributes to the anatomical knowledge base regarding brachial plexus morphology.