C. Lower end of left internal jugular vein, joining—
D. Left subclavian vein, which lies anterior to d, the scalenus anticus muscle.
E. Anterior jugular vein, coursing beneath sterno-mastoid muscle and over the fascia.
F. Deep cervical fascia, enclosing in its layers f f f, the several muscles.
G. Left sterno-mastoid muscle, cut across, and separated from g g, its sternal and clavicular attachments.
H. Left sterno-hyoid muscle, cut.
I. Left sterno-thyroid muscle, cut.
K. Right sterno-hyoid muscle.
L. Right sterno-mastoid muscle.
M. Trachea.