Superior labial artery
Superior Labial Artery
The Superior Labial Artery (pronunciation: su·pe·ri·or la·bi·al ar·ter·y) is a significant blood vessel in the facial region. It is a branch of the Facial Artery, which is itself a branch of the External Carotid Artery.
Etymology
The term "Superior Labial Artery" is derived from Latin and English. "Superior" is Latin for 'above', "Labial" is derived from the Latin 'labium' meaning 'lip', and "Artery" is from the Old French 'artiere' related to the Greek 'artēria' meaning 'windpipe, artery'.
Function
The Superior Labial Artery primarily supplies blood to the upper lip and nose. It is larger and more tortuous than its counterpart, the Inferior Labial Artery, which supplies the lower lip.
Course
The Superior Labial Artery arises near the angle of the mouth. It then ascends, piercing the Orbicularis Oris muscle, and runs in a tortuous course along the edge of the nose and the upper lip. It anastomoses with the artery of the opposite side and with the Lateral Nasal Branch of the Facial Artery.
Related Terms
- Facial Artery: The main artery that supplies blood to the structures of the face.
- External Carotid Artery: One of the two main divisions of the carotid artery, which supplies blood to the face and neck.
- Inferior Labial Artery: The artery that supplies blood to the lower lip.
- Orbicularis Oris: The muscle around the mouth that allows the lips to close and pucker.
- Lateral Nasal Branch: A branch of the facial artery that supplies blood to the side of the nose.
External links
- Medical encyclopedia article on Superior labial artery
- Wikipedia's article - Superior labial artery
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