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NJCA. 2015; 4(1): 30-34

Accessory head of biceps brachii muscle in North Indian cadavers

Gurbachan Singh Gindha, Anand Kumar Sharma, Ratesh Kumar Munjal.

Background and aims : The biceps brachii is the
large muscle of flexor compartment of arm. Normally it
arises by two heads (long head and short head) and gets
insertion in two parts (tendinous part and aponeurotic
parts). The biceps brachii muscle is well known for
variation in its origin.These variations can cause
compression of brachial artery and median nerve which
may pass deep to the accessory head of biceps brachii
muscle, and can create problems for surgeons. So the
surgeons should keep in mind such variations of biceps
brachii muscle.The present study is to find out the
variations in the origin of biceps brachii muscle. Material
and methods: The present study was conducted in
the department of anatomy of Gian Sagar Medical
College, Ramnagar, Rajpura district Patiala (Punjab).
In this study 32 human cadaveric limbs which were
embalmed and fixed in 10% formaldehyde solution were
used and these limbs were dissected and variations in
origin of the biceps brachii muscle were noted. Results
: Out of 32 limbs, 3 limbs (9.38%) were having three
heads of biceps brachii muscle in its origin. The variations
were found in the right limbs only. Conclusions : The
knowledge of accessory head of biceps brachii muscle
is important for the surgeons and troumatologists because
there can be iatrogenic injury to the third head of biceps
brachii muscle.

Key words: coracobrachiaslis muscle, cubital fossa, variations, median nerve, musculocutaneous nerve, compression, iatrogenic injuries

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