@article{ART003218944},
author={Tae-Young Kim and Eun-A Jeong and EunSeo Park and Park Kwang Rak},
title={A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations},
journal={Anatomy & Biological Anthropology},
issn={2671-5651},
year={2025},
volume={38},
number={2},
pages={141-144},
doi={10.11637/aba.2025.38.2.141}
TY - JOUR
AU - Tae-Young Kim
AU - Eun-A Jeong
AU - EunSeo Park
AU - Park Kwang Rak
TI - A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations
JO - Anatomy & Biological Anthropology
PY - 2025
VL - 38
IS - 2
PB - 대한체질인류학회
SP - 141
EP - 144
SN - 2671-5651
AB - This case report presents an anatomical variation of the biceps brachii muscle observed during cadaveric dissection, in which a third head was identified on the right side of an 85-year-old Korean male cadaver. The third head of the biceps brachii (THBB) originated from the surgical neck of the humerus, located vertically inferior to the lesser tubercle, and merged with the short head of the biceps brachii. Morphologically, THBB resembles the superior humeral head type but originates more proximally. Morphometric analysis revealed that the total length of the THBB was 25 cm, with a muscle belly length of 16 cm and a thickness of 0.4 cm. Given its close proximity to the surgical neck, a frequent site of surgical intervention for fractures or degenerative conditions, THBB may be at risk during procedures such as internal fixation or joint replacement. This finding suggests that recognizing such anatomical variations may help reduce the risk of iatrogenic injury and contribute to safer surgical practices in the upper limb.
KW - Biceps brachii;Accessory head;Surgical neck;Anatomical variation
DO - 10.11637/aba.2025.38.2.141
ER -
Tae-Young Kim, Eun-A Jeong, EunSeo Park and Park Kwang Rak. (2025). A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations. Anatomy & Biological Anthropology, 38(2), 141-144.
Tae-Young Kim, Eun-A Jeong, EunSeo Park and Park Kwang Rak. 2025, "A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations", Anatomy & Biological Anthropology, vol.38, no.2 pp.141-144. Available from: doi:10.11637/aba.2025.38.2.141
Tae-Young Kim, Eun-A Jeong, EunSeo Park, Park Kwang Rak "A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations" Anatomy & Biological Anthropology 38.2 pp.141-144 (2025) : 141.
Tae-Young Kim, Eun-A Jeong, EunSeo Park, Park Kwang Rak. A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations. 2025; 38(2), 141-144. Available from: doi:10.11637/aba.2025.38.2.141
Tae-Young Kim, Eun-A Jeong, EunSeo Park and Park Kwang Rak. "A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations" Anatomy & Biological Anthropology 38, no.2 (2025) : 141-144.doi: 10.11637/aba.2025.38.2.141
Tae-Young Kim; Eun-A Jeong; EunSeo Park; Park Kwang Rak. A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations. Anatomy & Biological Anthropology, 38(2), 141-144. doi: 10.11637/aba.2025.38.2.141
Tae-Young Kim; Eun-A Jeong; EunSeo Park; Park Kwang Rak. A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations. Anatomy & Biological Anthropology. 2025; 38(2) 141-144. doi: 10.11637/aba.2025.38.2.141
Tae-Young Kim, Eun-A Jeong, EunSeo Park, Park Kwang Rak. A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations. 2025; 38(2), 141-144. Available from: doi:10.11637/aba.2025.38.2.141
Tae-Young Kim, Eun-A Jeong, EunSeo Park and Park Kwang Rak. "A Third Head of the Biceps Brachii Muscle Originating from the Surgical Neck: Anatomical and Clinical Considerations" Anatomy & Biological Anthropology 38, no.2 (2025) : 141-144.doi: 10.11637/aba.2025.38.2.141
