"origin: facial branch of the facial artery, just distal to the origin of the inferior labial artery and lateral to the angle of the mouth"
"course: it passes superiorly and anteriorly, behind the depressor anguli oris muscle, before piercing the orbicularis oris muscle, and taking a meandering path between the muscle and the labial mucous membrane along the inferior margin of the upper lip, close to the wet line"
"branches: nasal"
"termination: anastomosis with the contralateral superior labial artery"
"origin: facial branch of the facial artery, just distal to the origin of the inferior labial artery and lateral to the angle of the mouth"
"course: it passes superiorly and anteriorly, behind the depressor anguli oris muscle, before piercing the orbicularis oris muscle, and taking a meandering path between the muscle and the labial mucous membrane along the inferior margin of the upper lip, close to the wet line"
"branches: nasal"
"termination: anastomosis with the contralateral superior labial artery"
Expected headings
"Summary"