Coexistence of a pectoralis quartus muscle, a supernumerary head of biceps brachii muscle and an accessory head of flexor digitorum profundus muscle

Although anatomical variations in the upper limb are frequent, coexistence of multiple combined variations is rare. During a routine educational dissection at Jeju National University Medical School, three muscular variations were found in a 75-year-old Korean male cadaver, in which a supraclavicula...

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Bibliographic Details
Published inFolia morphologica Vol. 78; no. 1; pp. 204 - 207
Main Authors Song, H, Kim, J, Yoon, S-P
Format Journal Article
LanguageEnglish
Published Poland Wydawnictwo Via Medica 01.01.2019
Subjects
Clavicle
Coexistence
Head
Supernumerary
Variation
pectoralis quartus
gantzer’s muscle
biceps brachii
muscular variations
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Summary:Although anatomical variations in the upper limb are frequent, coexistence of multiple combined variations is rare. During a routine educational dissection at Jeju National University Medical School, three muscular variations were found in a 75-year-old Korean male cadaver, in which a supraclavicular cephalic vein was also found in ipsilateral upper extremity during skinning. Here we describe cha- racteristics of the pectoralis quartus muscle, the supernumerary head of biceps brachii muscle and an accessory head of flexor digitorum profundus muscle, and discuss their coexistence from morphological and embryological points of view.
ISSN:0015-5659
1644-3284
DOI:10.5603/FM.a2018.0048