An Accessory Muscle of Pectoral Region: A Case Report Key words: Accessory pectoral muscle, Pectoralis major, Pectoralis minor, Medial pectoral nerve, Costo-chondral junction
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CASE REPORT During the routine dissection of a male cadaver in the Department of Anatomy, Shri B M Patil Medical College Bijapur, India, we found a long ribbon like muscle in right pectoral region, which originated from right 5th and 6th ribs at costo-chondral junction, in between the pectoralis major and pectoralis minor muscles [Table/Fig-1]. From its origin, it travelled above and laterally and inserted by fusing with fibres of pectoralis minor. Pectoralis minor was inserted on medial border and upper surface of coracoid process of scapula. Accessory pectoral muscle was 14 cm long and it was 4 cm broad at its origin.The nerve supply to this muscle was through medial pectoral nerve [Table/Fig-2]. No variations were found with regards to origin and insertion of pectoralis major and minor. This accessory muscle was found only on right side and left side pectoral muscles showed no variations.
منابع مشابه
An accessory muscle of pectoral region: a case report.
Among the variations of pectoral muscles, this case appears to be unique in the literature. This was a case of an accessory pectoral muscle which was located between pectoralis major and pectoralis minor muscles, which was discovered during a routine anatomy dissection. The accessory muscle originated from 6(th) and 7(th) ribs at costo-chondral junction, which travelled supero-laterally and ins...
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تاریخ انتشار 2013