In the study of the lingual artery in the anterior trigone region of the neck, the presence of the linguofacial trunk observed in our survey are partially according to the studies of Basmajian (1993); Shangkuan et al.
From the works found in the literature only Moore (1994) related that the lingual artery is found 5mm above the extremity of the greater horn of the hyoid bone and Homze et al.
The hypoglossal nerve constitutes an important anatomic structure that is related to the lingual artery. It was observed that in 72,92% of the cases the artery was inferior to the nerve, 12,50% on the nerve and 14,58% superior to it.
Concerning about the measurement of the distances among the origin of the lingual artery and the other arteries, it were not found data in the literature which could improve the discussion with our results.
Using the Test t of Student it was observed that among the pairs of the average between the origin of the lingual artery with the facial artery and the superior thyroid artery of both sides not showed a significant difference (p [menor que o igual a] 0,05), however, the average of the distances of the origin of the lingual artery with the bifurcation of the common carotid artery was significant p = 0,008, what indicates that on the left side the lingual artery is more inferior than on the right side.
Using the Coefficient of Correlation of Pearson, the distances among the origin of the lingual artery and the bifurcation of right common carotid and the distance of the origins of the lingual artery and the right facial artery was obtained a negative correlation, when one of the distances increases the other decreases.
The lingual artery often has its origin in the external carotid artery and also in the linguofacial trunk.
The lingual artery is found in a position more inferior than the one classicaly described based on the anatomic structures: the digastric muscle, the hyoid bone and the hypoglossal nerve.
The hyoid bone can be used as a point of reference for the ligature of the lingual artery once this vase is often above this bone.
There is a correlation among the distances of the origins of the lingual artery and the left and the fight facial artery.
The negative correlation between the lingual artery and the bifurcation of the fight common carotid can suggest a work with children to verify when the asymmetry occurs.