“Dupuytren was the first to excise the mandible in a case of jaw tumor and treat torticollis by subcutaneous section of the sternomastoid muscle.”
“It may spread laterally into the sternomastoid muscle and form an abscess in the neck.”
“Examination reveals a rubbery, nontender mass at the level of the carotid bifurcation, along the anterior border of the sternomastoid, more mobile laterally than vertically.”
“When the arm is abducted and externally rotated the sternocostal fibres are maximally stretched.”
“Disturbed growth of the trunk may result in abnormal sternocostal relationship and a variety of pectus deformities.”
“This is also true of humans, in which the latissimus dorsi, the sternocostal part of the pectoralis major, the teres major and the long head of the triceps all act as retractors of arm.”