TY - JOUR
T1 - Unusual third head of the sternocleidomastoid muscle from the investing layer of cervical fascia
AU - Sirasanagandla, Srinivasa Rao
AU - Bhat, Kumar M.R.
AU - Pamidi, Narendra
AU - Nagabhooshana Somayaji, S.
PY - 2012/9
Y1 - 2012/9
N2 - The abnormal origin, presence of additional head and layered arrangement of fibers are the reported variations of sternocleidomastoid muscle in the past. In the present case we report a rare unusual origin of third head of the sternocleidomastoid muscle in a 60 year-old male cadaver. This additional head originated from the investing layer of cervical fascia in the roof of the subclavian triangle close to the clavicle and traversed obliquely upward, forward and fused with clavicular head. The insertion and nerve supply of the muscle was found to be normal.
AB - The abnormal origin, presence of additional head and layered arrangement of fibers are the reported variations of sternocleidomastoid muscle in the past. In the present case we report a rare unusual origin of third head of the sternocleidomastoid muscle in a 60 year-old male cadaver. This additional head originated from the investing layer of cervical fascia in the roof of the subclavian triangle close to the clavicle and traversed obliquely upward, forward and fused with clavicular head. The insertion and nerve supply of the muscle was found to be normal.
KW - Anatomical variation
KW - Sternocleidomastoid muscle
KW - Third head
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U2 - 10.4067/S0717-95022012000300001
DO - 10.4067/S0717-95022012000300001
M3 - Article
AN - SCOPUS:84874606210
SN - 0717-9367
VL - 30
SP - 783
EP - 785
JO - International Journal of Morphology
JF - International Journal of Morphology
IS - 3
ER -