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Related Experiment Videos

A case with subclavius posticus muscle.

L Sarikcioglu1, M Sindel

  • 1Department of Anatomy, Akdeniz University, Faculty of Medicine, 07070 Antalya, Turkey. levent@med.akdeniz.edu.tr

Folia Morphologica
|September 13, 2001
PubMed
Summary
This summary is machine-generated.

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A rare accessory muscle, identified as the subclavius posticus, was discovered during a neck dissection. This aberrant muscle originated from the scapula and inserted onto the first rib, presenting unique anatomical findings.

Area of Science:

  • Anatomy
  • Morphology
  • Human Anatomy

Background:

  • Anatomical variations are crucial for understanding human morphology.
  • Aberrant muscles can impact surgical procedures and neurological function.

Observation:

  • An unusual accessory muscle was identified in the neck of a 50-year-old female cadaver during routine dissection.
  • The muscle was located on the left side, originating from the superior angle of the scapula.

Findings:

  • The aberrant muscle traversed over the brachial plexus and brachial artery before inserting onto the cartilage of the first rib.
  • Based on its anatomical course, the muscle was identified as the subclavius posticus.
  • Innervation was traced to a branch of the suprascapular nerve.

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Implications:

  • This finding highlights the importance of recognizing anatomical variations in the shoulder and neck region.
  • Such variations may have implications for surgical approaches involving the brachial plexus and subclavian vessels.
  • Further studies are needed to determine the prevalence and functional significance of the subclavius posticus muscle.