A midline depression on the dorsal surface of the tongue is called the:

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Quizplus · Accepted Answer

The top,or dorsal surface of the tongue,has a midline depression,the median lingual sulcus,corresponding to the position of a midline fibrous structure deeper in the tongue and fusion tissue area.A midline ridge of tissue on the hard palate is the median palatine raphe,which overlies the bony fusion of the palate.The labiomental groove is the natural indentation in the chin,just inferior to the lips.Posteriorly on the dorsal surface of the tongue,and more difficult to see clinically,is an inverted V-shaped groove,the sulcus terminalis.

A Midline Depression on the Dorsal Surface of the Tongue