Supernumerary humeral heads of the biceps brachii muscle revisited

Marc Rodríguez-Niendenführ, Teresa Vázquez, David Choi, Ian Parkin, José R. Sañudo

Research output: Contribution to journalArticleResearchpeer-review

52 Citations (Scopus)

Abstract

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. © 2003 Wiley-Liss, Inc.
Original languageEnglish
Pages (from-to)197-203
JournalClinical Anatomy
Volume16
Issue number3
DOIs
Publication statusPublished - 28 Apr 2003

Keywords

  • Arm muscles
  • Biceps brachii
  • Muscular variations
  • Supernumerary heads

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