Superior labial artery
Encyclopedia
The superior labial artery (superior labial branch of facial artery) is larger and more egregious than the inferior labial artery
.
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.
Inferior labial artery
The Iinferior labial artery arises near the angle of the mouth; it passes upward and forward beneath the Triangularis and, penetrating the Orbicularis oris, runs in a tortuous course along the edge of the lower lip between this muscle and the mucous membrane.It supplies the labial glands, the...
.
It follows a similar course along the edge of the upper lip
Upper lip
The upper lip covers the anterior surface of the body of the maxilla.Its upper half is of usual skin color and has a depression at its centre, directly under the nasal septum, called the philtrum, while its lower half is a markedly different, red-colored skin tone more similar to the colour of the...
, lying between the mucous membrane
Mucous membrane
The mucous membranes are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. They line cavities that are exposed to the external environment and internal organs...
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
Nasal septum
The nasal septum separates the left and right airways in the nose, dividing the two nostrils.It is depressed by the Depressor septi nasi muscle.-Composition:The fleshy external end of the nasal septum is sometimes also called columella....
as far as the point of the nose
Human nose
The visible part of the human nose is the protruding part of the face that bears the nostrils. The shape of the nose is determined by the ethmoid bone and the nasal septum, which consists mostly of cartilage and which separates the nostrils...
, and an alar branch supplies the ala of the nose.
External links
- "Superficial arteries of the face."- http://www.dartmouth.edu/~humananatomy/figures/chapter_47/47-5.HTM