The inferior labial artery (inferior labial branch of facial artery) arises near the angle of the
mouth
In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...
as a branch of the
facial artery
The facial artery (external maxillary artery in older texts) is a branch of the external carotid artery that supplies structures of the superficial face.
Structure
The facial artery arises in the carotid triangle from the external carotid arter ...
; it passes upward and forward beneath the
triangularis
The depressor anguli oris muscle (triangularis muscle) is a facial muscle. It originates from the mandible and inserts into the angle of the mouth. It is associated with frowning, as it depresses the corner of the mouth.
Structure
The depresso ...
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
mucous membrane, and the muscles of the
lower lip; and anastomoses with the artery of the opposite side, and with the mental branch of the
inferior alveolar artery.
Additional images
File:Lateral head anatomy detail.jpg, Lateral head anatomy detail
File:Head ap anatomy.jpg, Head anatomy anterior view
File:Slide2bbb.JPG, Inferior labial artery
References
External links
* - "Superficial arteries of the face."
* http://www.dartmouth.edu/~humananatomy/figures/chapter_47/47-5.HTM
Arteries of the head and neck
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