Skip to main content
SpringerLink
Log in

Anomalous head of the brachial muscle penetrates the deltoid muscle

  • Case Report
  • Published:
Anatomical Science International Aims and scope Submit manuscript

Abstract

We report here, for the first time a specimen in which the insertion of the deltoid muscle is divided into two parts, composing a canal. The brachial muscle was composed of medial, lateral, and anomalous heads. The anomalous head arose as a thin tendon from the surgical neck of humerus, passed through the canal, and then became confluent with the lateral head. The musculocutaneous nerve innervated the brachial muscle. The lateral head, but not the anomalous head, received a thin branch from the radial nerve.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1

Similar content being viewed by others

References

  • Fabrizio PA, Clemente FR (1997) Variation in the triceps brachii muscle: a fourth muscular heard. Clin Anat 10:259–263

    Article  PubMed  CAS  Google Scholar 

  • Frazer EA, Hobson M, McDonald SW (2007) The distribution of the radial and musculocutaneous nerves in the brachialis muscle. Clin Anat 20:785–789

    Article  PubMed  Google Scholar 

  • Furuizumi K (1934) Studies on the shoulder region and the upper extremity muscle in Japanese cadaver (in Japanese, translated into English by the author). J Nihon Univ Med Assoc 5:1063–1083

    Google Scholar 

  • Iwami S (1950) Studies on the musculature of the upper extremities of the Japanese fetus: I report (in Japanese with an English abstract). On the muscles of the brachium. Igakukenkyu 20:766–778

    Google Scholar 

  • Leonello DT, Galley IJ, Bain GI, Carter CD (2007) Brachialis muscle anatomy: a study in cadavers. J Bone Joint Surg Am 89:1293–1297

    Article  PubMed  Google Scholar 

  • Loukas M, Louis RG Jr, South G, Alsheik E, Christopherson C (2006) A case of an accessory brachialis muscle. Clin Anat 19:550–553

    Article  PubMed  Google Scholar 

  • Machida N (1961) Study of the double innervation of the upper extremity muscle––the brachial muscle (in Japanese, translated in English by the author). J Nihon Univ Med Assoc 20:7–16

    Google Scholar 

  • Mahakkanukrauh P, Somsarp V (2002) Dual innervation of the brachialis muscle. Clin Anat 15:206–209

    Article  PubMed  Google Scholar 

  • Nakatani T, Tanaka S, Mizukami S (1998) Bilateral four-headed biceps brachii muscles: the median nerve and brachial artery passing through a tunnel formed by a muscle slip from the accessory head. Clin Anat 11:209–212

    Article  PubMed  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Anatomy, Akita University School of Medicine, Hondo 1-1-1, Akita, 010-8543, Japan

    Akimitsu Ishizawa, Ming Zhou, Ryoji Suzuki & Hiroshi Abe

Authors
  1. Akimitsu Ishizawa
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ming Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Ryoji Suzuki
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Hiroshi Abe
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Akimitsu Ishizawa.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ishizawa, A., Zhou, M., Suzuki, R. et al. Anomalous head of the brachial muscle penetrates the deltoid muscle. Anat Sci Int 86, 116–118 (2011). https://doi.org/10.1007/s12565-009-0063-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12565-009-0063-9

Keywords

Search

Navigation