Nasal septum branch of superior labial artery
|Artery: Nasal septum branch of superior labial artery|
|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.|
|The arteries of the face and scalp. (Superior labial labeled at bottom right.)|
|Latin||ramus labialis superior arteriae facialis, arteria labialis superior|
|Gray's||subject #144 555|
|Supplies||upper lip, nasal septum, ala of the nose|
|Vein||superior labial vein|
- The blood supply of the mucosa of the nasal septum is derived mainly from the maxillary artery.
- The sphenopalatine artery, a branch of the maxillary, supplies most of the blood of the nasal mucosa.
- It enters by the sphenopalatine foramen and sends branches to the posterior regions of the lateral wall and to the nasal septum.
- The greater palatine artery, also a branch of the maxillary, passes through the incisive foramen to supply the nasal septum.
- The anterior and posterior ethmoidal arteries, branches of the ophthalmic artery, supply the anterosuperior part of the mucosa of the lateral wall of the nasal cavity and nasal septum.
- Three branches of the facial artery (superior labial, ascending palatine, and lateral nasal) also supply the anterior parts of the nasal mucosa.