Communicating ramus from lateral root of Median nerve to Ulnar nerve and fusion of Musculocutaneous nerve & Median nerve-a conjunction or co-incidence.
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Date
2013-07
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Abstract
Background: The brachial plexus has a complex anatomical structure since its origin in the neck throughout its
course in the axillary region. It also has close relationship to important anatomic structures what makes it an
easy target of a sort of variations and provides its clinical and surgical importance. The presence of
communicating branches between the terminal branches of the brachial plexus are relatively common &
reported by many of the authors but very few studies are there in literature about communicating branch from
the lateral root of the median nerve to the ulnar nerve. Materials and Methods: The present study was
conducted on 60 upper limbs belonging to 30 cadavers ( Male:Female = 28:02 ), ( Right:Left = 30:30 ) obtained
from Department of Anatomy. Observations: Communicating branch from the lateral root of the median
nerve to the ulnar nerve was seen in 2 limbs (3.33%). These limbs also depicted fusion of musculocutaneous &
median nerves. Discussion & Conclusion: Whether this is a conjunction or just a co-incidence, remains to be
verified on a larger database. However the existence of communicating branches may be of importance in the
evaluation of unexplained sensory loss after trauma or surgical intervention in a particular area. Further ontogeny
& phylogeny of the variant patterns are discussed.
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Keywords
Brachial plexus, Ulnar nerve, Lateral root of median nerve, Median nerve, Musculocutaneous nerve
Citation
Chaudhary Priti, Singla Rajan, Arora Kamal, Kalsey Gurdeep. Communicating ramus from lateral root of Median nerve to Ulnar nerve and fusion of Musculocutaneous nerve & Median nerve-a conjunction or co-incidence. International Journal of Anatomy and Research. 2013 Jul-Sept; 1(2): 93-99.