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The superior labial artery (superior labial branch of facial artery) is larger and more egregious than the inferior labial artery.

Superior labial artery
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The labial coronary arteries, the glands of the lips, and the nerves of the right side seen from the posterior surface after removal of the mucous membrane.
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The arteries of the face and scalp. (Superior labial labeled at bottom right.)
Details
Source facial artery
Vein superior labial vein
Supplies upper lip, nasal septum, ala of the nose
Identifiers
Latin ramus labialis superior arteriae facialis, arteria labialis superior
TA A12.2.05.026
FMA 49570
Anatomical terminology

It follows a similar course along the edge of the upper lip, lying between the mucous membrane and the Orbicularis oris, and anastomoses with the artery of the opposite side.

It supplies the upper lip, and gives off in its course two or three vessels which ascend to the nose; a septal branch ramifies on the nasal septum as far as the point of the nose, and an alar branch supplies the ala of the nose.

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This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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