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CC BY-NC-ND 4.0 · Journal of Morphological Sciences 2019; 36(02): 122-125
DOI: 10.1055/s-0039-1688799
Original Article
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Cadaveric Study of Anatomical Variations in the Musculocutaneous Nerve and in the Median Nerve

Abhilasha Priya 
1   Department of Anatomy, School of Medical Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
,
Chandni Gupta
2   Department of Anatomy, Kasturba Medical College, Manipal, Udupi, Karnataka, India
,
Antony Sylvan D'souza
3   Department of Anatomy, Wayanad Institute of Medical Sciences, Wayanad, Kerala, India
› Author Affiliations
Further Information

Publication History

24 July 2018

28 March 2019

Publication Date:
23 May 2019 (online)

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Abstract

Introduction The musculocutaneous nerve and the median nerve are branches from the lateral cord of the brachial plexus with a root value of C5, C6, and C7. The medial root of the median nerve is a branch of the medial cord. The present study aims at observing any variations in these peripheral nerves, so that this knowledge can be utilized by surgeons, anesthesiologists, and orthopedicians during surgical procedures and nerve block.

Materials and Methods The present study was carried on 30 adult embalmed cadavers (60 upper limbs) in the department of anatomy of the Kasturba Medical College , Manipal, India. The infraclavicular part of the brachial plexus was dissected, and any anatomical variations in the formation and in the branching pattern of the musculocutaneous nerve and of the median nerve were noted and photographs were taken.

Results The median nerve was noted to be formed from 3 roots in 8 out of 60 dissected upper limbs (13.33%). The musculocutaneous nerve was absent in 5% of the dissected limbs, and communications between these 2 nerves were noted in 13.33% of the dissected limbs.

Conclusions Noted variations of the nerves may be of help to surgeons operating in the axillas and in the arms.

Keywords

communication - lateral cord - macroscopic human anatomy - median nerve - musculocutaneous nerve
 

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