鼻翼弓浅层是鼻尖皮肤真皮下血管丛，由眼动脉和面动脉系统供应。
Superficial to the alar arcade is the subdermal plexus of the nasal tip skin that is supplied by branches of both ophthalmic and facial artery systems.
较深的丛为深部水平血管丛，位于真皮、皮下组织交界部，由比浅丛大的血管组成。
The deeper, lower horizontal plexus is found at the dermal-subcutaneous interface and is composed of larger blood vessels than those of the superficial plexus (see Fig. 1-1).
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