The inferior labialartery and inferior sublabial artery are the main branches from the facial artery to the inferior lip.
副下唇动脉仅见于一侧，在下唇部动脉供应中占重要比重。
2
The superior labialartery originates form the columellar artery, which courses up the columella to the region between the domes.
由上唇动脉起源形成鼻小柱动脉，其沿鼻小柱走行至穹窿间部位。
3
Superior labialartery give a branch which run long philtral ridges to nasal base, this branch is better known as nasal base branch of superior labialartery.