Biceps brachii muscle attached to the extensor carpi radialis brevis muscle: an unreported anatomical variation in humans

Torre, Francisco Reina‐De La; Nebot-Cegarra, Josep; Pérez-Berruezo, J.

doi:10.1016/s0940-9602(11)80505-4

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…In terms of the number and morphology of its heads, the biceps brachii is one of the most variable muscles in the human body (Bergman et al, 1988;Nakatani et al, 1998). Although absence of the entire muscle or one of its heads (Greig et al, 1952;Rodriguez-Niedenfuhr et al, 2003) and variations of the insertion seem to be uncommon (Greig et al, 1952;Reina-de la Torre et al, 1994), supernumerary heads of the biceps brachii are relatively frequent (Greig et al, 1952;Kosugi et al, 1992;Asvat et al, 1993;Nakatani et al, 1998;Rodriguez-Niedenfuhr et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Three-headed biceps brachii muscle associated with duplicated musculocutaneous nerve

Abu-Hijleh

2005

Clin. Anat.

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A unilateral three-headed biceps brachii muscle coinciding with an unusual variant of the musculocutaneous nerve was found during routine dissection of a 79-year-old male cadaver. The supernumerary bicipital head originated from the antero-medial surface of the humerus just beyond the insertion of the coracobrachialis, and inserted into the conjoined tendon of biceps brachii. Associated with this muscular variant was a duplicated musculocutaneous nerve. The proximal musculocutaneous nerve conformed to the normal pattern only in its proximal part, and terminated after innervating the coracobrachialis and biceps brachii muscles. The distal musculocutaneous nerve arose from the median nerve in the lower arm, then passed laterally between the supernumerary bicipital head and the brachialis muscles, supplying both and terminating as the lateral cutaneous nerve of the forearm. The supernumerary bicipital head and the accompanying anomaly of the musculocutaneous nerve seem to be unique in literature.

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Section: Introductionmentioning

confidence: 99%

Three-headed biceps brachii muscle associated with duplicated musculocutaneous nerve

Abu-Hijleh

2005

Clin. Anat.

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“…Absence of the long or short head (Gegenbaur, 1861;Gruber, 1872;Lecco, 1907;Pina, 1929) and variations in the insertion are rare (Groeneveld, 1927;Reina-de la Torre et al, 1994;Ozan et al, 1997). In contrast, supernumerary heads are relatively frequent (Adachi, 1910).…”

Section: Introductionmentioning

confidence: 99%

Supernumerary humeral heads of the biceps brachii muscle revisited

et al. 2003

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Supernumerary humeral heads of the biceps brachii muscle were found in 27 (15.4%) of 175 cadavers. They were bilateral in five cadavers and unilateral in 22 (8 left, 14 right), giving a total of 32 examples in 350 arms (9.1%). Depending on their origin and location, the supernumerary heads were classified as superior, infero-medial, and infero-lateral humeral heads. Previous studies were reviewed using this classification. The infero-medial humeral head was observed in 31 of 350 (9%) arms and was therefore the most common variation. The superior humeral head was observed in five (1.5%). The infero-lateral humeral head was the least common variation, observed only in one (0.3%) of 350 arms. A biceps brachii with three heads was observed in 27 of 350 (7.7%) arms and with four heads in five (1.4%) arms.

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“…Other variants of distal tendon morphology include slips extending to the medial intermuscular septum, medial epicondyle, pronator teres, or extensor carpi radialis brevis. 42,43 The distal biceps tendon is also wider and thicker in males compared with females, both at the level of the elbow and at the bicipital tuberosity. 39 The superficial fibers of the biceps tendon also form a broad aponeurotic sheet, termed the lacertus fibrosus or bicipital aponeurosis (►Figs.…”

Section: Anatomy Of the Distal Bicepsmentioning

confidence: 99%

The Biceps Muscle from Shoulder to Elbow

Stevens

Kwak

Poplawski

2012

Semin Musculoskelet Radiol

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The biceps brachii plays an integral role in movement of the shoulder and elbow, and pathology can occur in athletes of all ages. Injuries of the proximal biceps tendon can be seen in overhead athletes as a result of chronic impingement, tendon instability, or tensile overload, often with accompanying lesions of the labrum or rotator cuff. Presentation may be insidious or can be precipitated by an acute event. Injuries to the distal biceps are more common in athletes involved in strength training such as weightlifters, or occasionally in contact sports. Although injury to the proximal and distal biceps can often be diagnosed clinically, MRI is an excellent imaging modality to evaluate the extent of disease and involvement of adjacent structures. This article reviews the anatomy of the biceps brachii from the shoulder to elbow and discusses commonly occurring pathology of the biceps and adjacent anatomical structures.

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Biceps brachii muscle attached to the extensor carpi radialis brevis muscle: an unreported anatomical variation in humans

Cited by 7 publications

References 5 publications

Three-headed biceps brachii muscle associated with duplicated musculocutaneous nerve

Three-headed biceps brachii muscle associated with duplicated musculocutaneous nerve

Supernumerary humeral heads of the biceps brachii muscle revisited

The Biceps Muscle from Shoulder to Elbow

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