Variation of the supernumerary head of the biceps brachii muscle: two case reports and literature review

Dönmez, Barış Özgür

doi:10.2399/ana.09.017

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…Donmez et al 6 found supernumerary heads in two male cadavers. In one case the origin was from the medial lip of the intertubercular groove and in another case it was from the lateral lip of intertubercular groove.…”

Section: Discussionmentioning

confidence: 87%

Biceps Brachii Muscle with Third Head a Case Study

et al. 2018

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Introduction Biceps brachii muscle belongs to the flexor group of muscles in arm. As Biceps brachii is double headed muscle. It is one of the known variable muscles of human body in terms of number and morphology. Material and Method During routine human cadaveric dissection for the purpose of teaching medical undergraduates in our department. The upper limb of embalmed adult male cadaver was dissected as per the standard method to note the origin, insertion, and nerve supply of biceps brachii. Results The three headed biceps brachii was found unilaterally on right side in adult male cadaver. The long and short head had normal origin, but third head originated from humerus below insertion of coracobrachialis and inserted with main muscle belly and innervated by musculocutaneus nerve. Conclusion Variant biceps brachii may confuse a surgeon who performs procedures on the arm and may lead to iatrogenic injuries. The surgeons and traumatologists have to keep such muscular variations in mind. So the knowledge of existence of its variation is important for anaesthetists and surgeons.

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Section: Discussionmentioning

confidence: 87%

Biceps Brachii Muscle with Third Head a Case Study

et al. 2018

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“…[ 4 ] Supernumerary heads of the biceps brachii (SNB) muscle have been extensively investigated pertaining to their attachments, innervation, gender, and racial differences. [ 5 ] The SNB have variable prevalence among different populations, being 8% in Chinese, 10% in Europeans, 12% in Africans, and 18% in Japanese. [ 1 ] Asvat et al .…”

Section: Discussionmentioning

confidence: 99%

“…During this stage of development, SNB may arise due to variable segmentation of the ventral muscle mass. [ 5 ]…”

Section: Discussionmentioning

confidence: 99%

Bilateral three-headed biceps brachii muscle and its clinical implications

Saluja

Das

Kumar

et al. 2017

Int J App Basic Med Res

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Biceps brachii muscle frequently exhibits variant morphology in terms of origin, insertion, and mode of innervation. Nevertheless, the three-headed biceps brachii is described to be the most common variation. During routine cadaveric dissection, we came across a unique case of tricipital biceps brachii present on both the sides and variant course and branching pattern of musculocutaneous nerve. The third-headed biceps brachii emerged from the deep investing fascia of the brachialis muscle on both the sides. The musculocutaneous nerve (MCN) did not pierce the coracobrachialis muscle on the right side and terminated by supplying the muscles of the anterior compartment of the arm. However, a normal course was pursued by the MCN on the left side. Thus, scrupulous knowledge of the variant morphology of the biceps and associated structures may facilitate preoperative diagnosis and management of the upper limb diseases and circumvent iatrogenic injuries.

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Variation of the supernumerary head of the biceps brachii muscle: two case reports and literature review

Cited by 2 publications

References 12 publications

Biceps Brachii Muscle with Third Head a Case Study

Biceps Brachii Muscle with Third Head a Case Study

Bilateral three-headed biceps brachii muscle and its clinical implications

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