During a routine anatomical dissection of the right brachium of a 68-year-old male cadaver, an extremely rare variation of the coracobrachialis longus muscle was discovered. It started from the medial surface of the middle part of the humerus with a well-formed muscle portion and then continued into the well-presented distal tendinous portion, which was attached to the medial epicondyle of the humerus. We also briefly review the reported variations of the coracobrachialis and their potential clinical significance.
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http://dx.doi.org/10.7759/cureus.2615 | DOI Listing |
Biol Open
June 2024
School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland.
The supracondylar foramen with a (seemingly) osseous peripheral arch noticed on the medio-distal feline humeri had remained disputed among anatomists. Some scholars have argued in favor of homology between this foramen and the supracondyloid foramen formed in presence of the ligament of Struthers in humans. Other theories include its presence as a retinaculum holding the median nerve and brachial artery to their anatomical position in a flexed elbow.
View Article and Find Full Text PDFSurg Radiol Anat
July 2023
Department of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland.
Purpose: The aim of the presented case is to describe an unprecedented innervation of the coracobrachialis longus muscle by the radial nerve.
Methods: An 82-year-old body donor at death was subjected to a routine anatomical dissection for teaching and research purposes at the Department of Anatomical Dissection and Donation in Lodz, Poland.
Results: We have found an additional branch of the radial nerve, which departed from it just below its beginning.
Folia Morphol (Warsz)
May 2023
Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland.
The coracobrachialis muscle belongs to the anterior group of the brachial region. Its main functions are flexion and adduction at the glenohumeral joint. It is highly morphologically variable, especially in the number of bellies, place of origin or insertion, and its relationship to the musculocutaneous nerve.
View Article and Find Full Text PDFAnn Anat
January 2022
Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland.
Background: The coracobrachialis muscle, along with the brachialis and biceps brachii muscles, belong to the anterior group of the brachial region. It is characterized by high level of morphological variabilities, with a common variation being the coracobrachialis longus (CBL) muscle. The CBL may be recognized as a distal part of the coracobrachialis muscle, originating from the anteromedial surface of the humerus, however, the two muscles are distinct from each other, and the distal attachment of the CBL is longer and located closer to the elbow joint.
View Article and Find Full Text PDFSurg Radiol Anat
October 2021
Department of Human Anatomy and Embryology, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
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