Bilaterally existing sternoclavicularis anticus muscles.
A 92-year-old Japanese woman was found to have the sternoclavicularis anticus muscles existing bilaterally during the course of educational dissection at Nagoya City University Medical School. It was confirmed that these muscles received the nerve supply from small branches of the lateral pectoral nerves from the brachial plexus. Herein is documented the precise gross anatomical findings with some morphometric measurements. Moreover, the morphology of this muscle is discussed in relation to previously described variations of the pectoral sheet of muscles.
Sakuma
Eisuke
E
Department of Functional Morphology, Nagoya City University Graduate School of Medical Sciences, Nagoya City, Aichi, Japan. esakuma@med.nagoya-cu.ac.jp
Omi
Kan
K
Takeda
Norihisa
N
Hasegawa
Hiroaki
H
Mori
Kento
K
Mabuchi
Yoshio
Y
Soji
Tsuyoshi
T
D000369:Aged, 80 and over; D001917:Brachial Plexus / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D018482:Muscle, Skeletal / Q000002:abnormalities* / Q000294:innervation; D013247:Sternoclavicular Joint / Q000033:anatomy & histology*; D013900:Thoracic Nerves / Q000033:anatomy & histology