Corpus: Superior labial artery
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from Latin: arteria - artery, labium - lip
1. Definition
The superior labial artery is a branch of the facial artery that supplies the upper lip with arterial blood.
2. Course
The superior labial artery runs in the tissue between the labial mucosa and the orbicularis oris muscle along the lower edge of the upper lip and anastomoses here with the sister vessel on the opposite side.
The superior labial artery primarily supplies the upper lip and gives off 2-3 branches along its course that ascend to the nose. One branch runs in the direction of the nasal septum to the locus Kiesselbachi, another supplies the nostril.