Deep lingual artery
Encyclopedia
The deep lingual artery (or ranine artery) is the terminal portion of the lingual artery
Lingual artery
The lingual artery arises from the external carotid between the superior thyroid and facial artery. It can be located easily in the tongue.-Path:It first runs obliquely upward and medialward to the greater cornu of the hyoid bone....

 after the sublingual artery is given off.

As seen in the picture, it travels superiorly in a tortuous course along the under (ventral) surface of the tongue
Tongue
The tongue is a muscular hydrostat on the floors of the mouths of most vertebrates which manipulates food for mastication. It is the primary organ of taste , as much of the upper surface of the tongue is covered in papillae and taste buds. It is sensitive and kept moist by saliva, and is richly...

, below the Longitudinalis inferior, and above the mucous membrane
Mucous membrane
The mucous membranes are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. They line cavities that are exposed to the external environment and internal organs...

.

It lies on the lateral side of the Genioglossus
Genioglossus
The genioglossus is a muscle of the human body which runs from the chin to the tongue. The genioglossus is the major muscle responsible for protruding the tongue.-Structure:...

, the main large extrinsic tongue muscle, accompanied by the lingual nerve
Lingual nerve
The lingual nerve is a branch of the mandibular nerve , itself a branch of the trigeminal nerve, which supplies sensory innervation to the tongue...

. However, as seen in the picture, the deep lingual artery passes inferior to the hyoglossus (the cut muscle on the bottom) while the lingual nerve (not pictured) passes superior to it (for a comparison, the hypoglossal nerve, pictured, passes superior to the hyoglossus).

At the tip of the tongue, it is said to anastomose with the artery of the opposite side, but this is denied by Hyrtl
Josef Hyrtl
Josef Hyrtl was an Austrian anatomist.Hyrtl was born at Kismarton, in Hungary. He began his medical studies in Vienna in 1831, having received his preliminary education in his native town. His parents were poor, and he had to find some means to help defray the expenses of his medical education...

.

In the mouth, these vessels are placed one on either side of the frenulum linguæ.
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