(Trang không có chữ)
Part IV
Head and Neck
(Trang không có chữ)
12
Head and Neck
cases, it bifurcates above the zygomatic arch into ante-
rior and posterior branches (4, 5). The internal caliber at
this level ranges from 1.8 to 2.7 mm. Its length ranges
from 2.5 to 5.0 cm, averaging 3.4 cm.