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BLOOD-VESSEL SYSTEM OF THE HEAD, ETC. 223

ing the gland, it makes a sharp turn upward over the body of the
inferior maxillary bone, curving through a notch just in front of the
insertion of the masseter muscle. From its origin to this point, where
it curves over the body of the inferior maxilla, it constitutes the first
or cervical division of the artery. As it passes over the body of the
jaw the artery is quite superficial, being covered only by the skin and
platysma myoides muscle. In this situation the pulsation of the artery

Fig. lOS.

The Arteries of the Face and Scalp.
can be distinctly felt, and the flow of blood to parts above can be con-
trolled by direct pressure of the artery against the bone. This is like-
wise a favorable location for the ligation of the artery. From the base
of the jaw it passes obliquely upward and forward toward tlie inner
canthus of the eye, w^here it terminates in the angular artery and com-
municates with branches of the ophthalmic artery. From the body of
the jaw it passes between the masseter and depressor anguli oris muscles
to near the angle of the mouth. It then extends beneath the two zygc-