A study of biceps brachii muscle: Anatomical considerations and clinical implications
Context: Biceps brachii muscle (BBm) is a very variable muscle, the variations being associated with a variety of clinical conditions. This study delves on anatomical variations in this muscle, possible phylogenic causes for their frequency and their clinical importance. Aims: The aim was to study a...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2015-01-01
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| Series: | Sahel Medical Journal |
| Subjects: | |
| Online Access: | http://www.smjonline.org/article.asp?issn=1118-8561;year=2015;volume=18;issue=1;spage=31;epage=37;aulast=Bharambe |
| _version_ | 1818595464898936832 |
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| author | Vaishaly Kishore Bharambe Neelesh Subhash Kanaskar Vasanti Arole |
| author_facet | Vaishaly Kishore Bharambe Neelesh Subhash Kanaskar Vasanti Arole |
| author_sort | Vaishaly Kishore Bharambe |
| collection | DOAJ |
| description | Context: Biceps brachii muscle (BBm) is a very variable muscle, the variations being associated with a variety of clinical conditions. This study delves on anatomical variations in this muscle, possible phylogenic causes for their frequency and their clinical importance. Aims: The aim was to study anatomy of bicep brachii muscle, its variations and their clinical importance. Subjects and Methods: A total of 60 upper limbs preserved in 10% formalin were dissected meticulously to study anatomical details of the BBm. Results: The incidence of variation in anatomy of BBm was 15%, with incidence being 11.6% and 3.3% among male and female cadavers studied, respectively. Variation was unilateral in 10% and bilateral in 3.3%. The incidence of third head was 13.3% out of which 3.3% took origin from the capsule of the shoulder joint, 8.3% from humerus, and 1.6% from brachialis muscle. Incidence of extra bellies of insertion was found to be 1.6%. A 3.3% incidence was observed in the nerve supply. Conclusions: Variations in BBm are a reflection of its late development in human phylum. The extra bellies can cause neurovascular compression, change the kinematics at the elbow joint and be misinterpreted as tears of muscle on magnetic resonance imaging. They should be watched for in the shoulder as well as elbow joint surgeries. The authors suggest that the extra bellies of BBm instead of being labeled as third, fourth or fifth heads, can be classified as those of origin and insertion and bellies of origin be referred to clearly as capsular, humeral or brachial heads. |
| first_indexed | 2024-12-16T11:16:26Z |
| format | Article |
| id | doaj.art-cad830ad2c29468f9250dca3d6b3035c |
| institution | Directory Open Access Journal |
| issn | 2321-6689 |
| language | English |
| last_indexed | 2024-12-16T11:16:26Z |
| publishDate | 2015-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Sahel Medical Journal |
| spelling | doaj.art-cad830ad2c29468f9250dca3d6b3035c2022-12-21T22:33:36ZengWolters Kluwer Medknow PublicationsSahel Medical Journal2321-66892015-01-01181313710.4103/1118-8561.152156A study of biceps brachii muscle: Anatomical considerations and clinical implicationsVaishaly Kishore BharambeNeelesh Subhash KanaskarVasanti AroleContext: Biceps brachii muscle (BBm) is a very variable muscle, the variations being associated with a variety of clinical conditions. This study delves on anatomical variations in this muscle, possible phylogenic causes for their frequency and their clinical importance. Aims: The aim was to study anatomy of bicep brachii muscle, its variations and their clinical importance. Subjects and Methods: A total of 60 upper limbs preserved in 10% formalin were dissected meticulously to study anatomical details of the BBm. Results: The incidence of variation in anatomy of BBm was 15%, with incidence being 11.6% and 3.3% among male and female cadavers studied, respectively. Variation was unilateral in 10% and bilateral in 3.3%. The incidence of third head was 13.3% out of which 3.3% took origin from the capsule of the shoulder joint, 8.3% from humerus, and 1.6% from brachialis muscle. Incidence of extra bellies of insertion was found to be 1.6%. A 3.3% incidence was observed in the nerve supply. Conclusions: Variations in BBm are a reflection of its late development in human phylum. The extra bellies can cause neurovascular compression, change the kinematics at the elbow joint and be misinterpreted as tears of muscle on magnetic resonance imaging. They should be watched for in the shoulder as well as elbow joint surgeries. The authors suggest that the extra bellies of BBm instead of being labeled as third, fourth or fifth heads, can be classified as those of origin and insertion and bellies of origin be referred to clearly as capsular, humeral or brachial heads.http://www.smjonline.org/article.asp?issn=1118-8561;year=2015;volume=18;issue=1;spage=31;epage=37;aulast=BharambeAnatomybiceps brachiibiceps brachii in gibbonsextra headmusculocutaneous nervethird head |
| spellingShingle | Vaishaly Kishore Bharambe Neelesh Subhash Kanaskar Vasanti Arole A study of biceps brachii muscle: Anatomical considerations and clinical implications Sahel Medical Journal Anatomy biceps brachii biceps brachii in gibbons extra head musculocutaneous nerve third head |
| title | A study of biceps brachii muscle: Anatomical considerations and clinical implications |
| title_full | A study of biceps brachii muscle: Anatomical considerations and clinical implications |
| title_fullStr | A study of biceps brachii muscle: Anatomical considerations and clinical implications |
| title_full_unstemmed | A study of biceps brachii muscle: Anatomical considerations and clinical implications |
| title_short | A study of biceps brachii muscle: Anatomical considerations and clinical implications |
| title_sort | study of biceps brachii muscle anatomical considerations and clinical implications |
| topic | Anatomy biceps brachii biceps brachii in gibbons extra head musculocutaneous nerve third head |
| url | http://www.smjonline.org/article.asp?issn=1118-8561;year=2015;volume=18;issue=1;spage=31;epage=37;aulast=Bharambe |
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