A combined variation of the musculocutaneous nerve associated with a supernumerary head of the biceps brachii muscle

Lee, S. H.; Jeon, Jae Yong; Yoon, Sang Pil

doi:10.5603/fm.2014.0054

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…Embryologically, the third head of the BB was considered as a part of the brachialis muscle that was separated by the musculocutaneous nerve, being classified by Kosugi et al (1992); a similar case was also reported by our laboratory (Lee et al 2014). Phylogenetically, variations of the BB were explained as a remnant of a ''tuberculo-septale'' head that, together with short and long heads, is present in hylobates but is a product of regression in humans and anthropoids (de Burlet and Correljé 1919).…”

Section: Discussionmentioning

confidence: 64%

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Five-headed biceps brachii muscle with a rare origin from the tendon of pectoralis major muscle

Park

Kim

2015

Anat Sci Int

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We found a five-headed biceps brachii (BB) muscle associated with the pectoralis major muscle in a 43-year-old Korean male cadaver during a routine dissection course. A supernumerary head originated from the anterior surface of the distal tendinous part of the pectoralis major muscle, lay in the sulcus between the short and long heads of BB muscle, and terminated at their point of union. The additional two accessory heads originated from the body of the humerus between the insertion site of the coracobrachialis muscle and the origin site of the brachialis muscle and inserted into the distal part of the united muscle belly of the BB muscle. The additional accessory heads were supplied by branches of the musculocutaneous nerve. Although a supernumerary head of BB muscle originated from the pectoralis major is a peculiar finding, morphological details on the presence of another combined variation might be essential for clinicians as well as anatomists.

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Section: Discussionmentioning

confidence: 64%

“…The prevalence of three supernumerary heads is about 0.17 % (Adachi 1910), in which the extra heads commonly originate from the humerus. The similar fiveheaded BB was recently reported, 100 years thereafter (Lee et al 2014), although a BB with seven heads was once reported without morphological details (Pires de Lima 1923).…”

Section: Introductionmentioning

confidence: 67%

Five-headed biceps brachii muscle with a rare origin from the tendon of pectoralis major muscle

Park

Kim

2015

Anat Sci Int

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“…Single anatomical variation in the upper limb is common [1]. The brachial plexus is the most variable part of the peripheral nervous system [2].…”

Section: Introductionmentioning

confidence: 99%

Variations of Musculocutaneous Nerve Combined with High Bifurcation of the Brachial Artery

Chen¹,

Fu²,

Guo³

et al. 2018

OALib

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During a routine dissection of the right upper limb of a 65-year-old male cadaver whose death is not clear, we found two anatomical abnormalities on the musculocutaneous nerve and brachial artery on the same arm. First, the musculocutaneous nerve derived from the lateral fascicles of brachial plexus by two branches. Second, the brachial artery emitted the radial and ulnar arteries at the level of 1/3 proximal upper arm. Given these variations are discovered rarely and accurate knowledge of such variations is important for both surgeons and radiologists.

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Morphology and relationships of the biceps brachii and brachialis with the musculocutaneous nerve

et al. 2017

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A combined variation of the musculocutaneous nerve associated with a supernumerary head of the biceps brachii muscle

Abstract: Single anatomical variation in the upper limb is common (Folia Morphol 2014; 73, 3: 366-369)

Cited by 6 publications

References 9 publications

Five-headed biceps brachii muscle with a rare origin from the tendon of pectoralis major muscle

Five-headed biceps brachii muscle with a rare origin from the tendon of pectoralis major muscle

Variations of Musculocutaneous Nerve Combined with High Bifurcation of the Brachial Artery

Morphology and relationships of the biceps brachii and brachialis with the musculocutaneous nerve

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