median sulcus


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Related to median sulcus: Filiform papillae, anterior median fissure

median sulcus

On the dorsal surface of the tongue, the midline groove that separates the surface into right and left halves.
See also: sulcus
References in periodicals archive ?
Supraanal plate triangular, the lateral margins slightly sinuous, broad rounded apex, with a conspicuous median sulcus extending beyond midlength.
Supraanal plate triangular, sinuous margins, tapering gradually towards a rounded apex, median sulcus basally deep, but not very broad, extending beyond midlength.
Supraanal plate triangular, tapering gradually towards a rounded apex; basal quarter of median sulcus broad and moderately deep, then narrow and extending beyond midlength.
Supraanal plate triangular, slightly sinuous margins, tapering gradually towards a rounded apex, median sulcus basally broad and deep, extending slightly beyond midlength.
Supraanal plate triangular, sinuous margins, tapering moderately towards a rounded apex, median sulcus basally broad and deep, extending slightly beyond midlength, distally very shallow.
Supraanal plate triangular, about one quarter longer than broad, sinuous margins, tapering gradually towards rounded apex, median sulcus basally broad and deep, extending beyond midlength.