S. Portion of the same fascia.
T. External jugular vein injected beneath the skin.
U. Clavicle at the mid-point, where the subclavian artery passes beneath it.
V. Locality of the subclavian artery in the third part of its course.
W. Prominence of the trapezius muscle.
X. Prominence of the clavicular portion of the sterno-cleido-mastoid muscle.
Y. Place indicating the interval between the clavicular and sternal insertions of sterno-cleido-mastoid muscle.
Z. Projection of the sternal portion of the sterno-cleido-mastoid muscle.
Plate 7