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International Journal of Advances In Case Reports

Volume 11, Issue 1, 2024
Mcmed International
International Journal of Advances In Case Reports
Issn
XXX-XXXX (Print), 2349 - 8005 (Online)
Frequency
bi-annual
Email
editorijacr@mcmed.us
Journal Home page
http://mcmed.us/about/ijacr
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Abstract
Title
A CASE REPORT ON VARIANT DISTAL ATTACHMENT OF BRACHIALIS MUSCLE
Author
Janhavi H Bhende*, Sharadkumar Pralhad Sawant, Rakhi M. More, Shaguphta T. Shaikh, Shaheen Rizvi, Uma R
Email
janhavibhende@gmail.com
keyword
Accessory Brachialis Muscle, Median Nerve, Brachial Artery, Variation, Nerve Compression, Radius Bone, Pronation and Supination, Orthopedicians.
Abstract
During routine dissection for first M.B.B.S. students on 65 years donated embalmed male cadaver in the Department of Anatomy, K. J. Somaiya Medical College, we observed an additional insertion of left brachialis muscle. The origin of the accessory muscle belly was from the anteromedial surface of the shaft and the medial supracondylar ridge of the lower end of the humerus. The accessory muscle slip merged with the tendon of pronator teres and got inserted on to the upper one third of the lateral surface of the shaft of the radius. The accessory muscle belly of the brachialis muscle was innervated by musculocutaneous nerve. The median nerve and the brachial artery travelled deep to the accessory muscle belly of the brachialis muscle. The role of additional muscles in compression syndrome is a well known phenomenon. Similar to the biceps brachii muscle, the brachialis got inserted on the radius bone, and therefore can participate in pronation and supination of the forearm. There was no associated altered anatomy of the blood vessels observed in the specimen. The right upper limb of the same cadaver was normal. The photographs of the variations were taken for proper documentation and for ready reference. The knowledge of such type of variation is clinically important for Anatomists, Neurologists, Radiologists, Surgeons Plastic surgeons and Orthopedicians
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