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Related Experiment Videos

The deep axillary artery.

Satoru Honma1, Katsushi Kawai, Masahiro Koizumi

  • 1Department of Anatomy, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. shonma@kaiju.medic.kumamoto-u.ac.jp

Anatomical Science International
|March 11, 2006
PubMed
Summary

A rare deep axillary artery variation was found running beneath the brachial plexus. This anatomical anomaly involved the artery passing between nerve cords and roots, highlighting its unique developmental pathway.

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Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Clinical Anatomy

Background:

  • The axillary artery and brachial plexus are critical neurovascular structures in the upper limb.
  • Variations in their anatomical arrangement can impact surgical procedures and diagnostic interpretations.

Observation:

  • An aberrant axillary artery was observed running deep to the brachial plexus.
  • The brachial plexus exhibited a typical formation from the fourth cervical nerve to the first thoracic nerve.
  • A unique accessory radial nerve root was noted originating from the posterior aspect of the lower trunk.

Findings:

  • The aberrant axillary artery traversed between the lateral and medial cords of the brachial plexus.
  • It further passed between the posterior divisions forming the posterior cord.

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  • The artery ran between the radial nerve root and the accessory radial nerve root, from deep to superficial, termed a 'deep axillary artery'.

    • Implications:

    • This anatomical variation, termed 'deep axillary artery,' may have implications for surgical approaches in the axilla.
    • Understanding such variations is crucial for avoiding iatrogenic injuries during upper limb surgeries.
    • The formation of this aberrant artery might be influenced by specific muscular branches and nutrient vessels during development.