from The Century Dictionary.
- In anatomy, surrounded with a walled depression; circumvallate. [Rare.]—
- In zoöl., cupped; cup-shaped.
Sorry, no etymologies found.
The division between the anterior two-thirds and the posterior third is marked by a V-shaped furrow, the sulcus terminalis, which is situated immediately behind the line of the vallate papillæ.
In the adult the union of the anterior and posterior parts of the tongue is marked by the V-shaped sulcus terminalis, the apex of which is at the foramen cecum, while the two limbs run lateralward and forward, parallel to, but a little behind, the vallate papillæ.
The _foramen cæcum_ lies just behind the apex of the vallate papillæ in the middle line.
A slight median depression is recognisable on the dorsum as far back as the vallate (circumvallate) papillæ, which mark the boundary between the oral and pharyngeal parts.
The lymphatic vessels of the tongue may be divided into four groups: (1) apical, from the tip of the tongue to the suprahyoid glands and principal gland of the tongue; (2) lateral, from the margin of the tonguesome of these pierce the Mylohyoideus to end in the submaxillary glands, others pass down on the Hyoglossus to the superior deep cervical glands; (3) basal, from the region of the vallate papillæ to the superior deep cervical glands; and (4) median, a few of which perforate the Mylohyoideus to reach the submaxillary glands, while the majority turn around the posterior border of the muscle to enter the superior deep cervical glands.
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