sulcus

(redirected from Median sulcus)
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Related to Median sulcus: Filiform papillae, anterior median fissure

sulcus

(sul -kŭs) (plural: sulci) an area of subparallel furrows and ridges on the surface of a planet or satellite. The word is used in the approved name of such a feature.

sulcus

[′səl·kəs]
(zoology)
A furrow or groove, especially one on the surface of the cerebrum.
References in periodicals archive ?
The supra-anal plate (Figs 22, 31) is triangular, surface with a long, shallow median sulcus extending beyond midlength; furculae absent.
the supra-anal plate is triangular, widening basally, median sulcus proximad, very broad and moderately deep, furculae represented by two small, rounded projections; whereas in N.
Head: Testaceous-brown, with vittae; median sulcus of vertex embrowned; clypeus, mandibular and maxillary plates red to testaceous-brown with red highlighting; occipital region mostly brown.
Head: Testaceous; vertex with median sulcus embrowned.
Transverse median sulcus distinct, gently curved and reaching to lateral margins of segment.
Transverse median sulcus distinct, but not reaching lateral margins of segment.
Supraanal plate triangular, basally broad, tapering gradually towards a pointed rounded apex; median sulcus basally broad and deep, extending about midlength.
Supraanal plate triangular, the lateral margins slightly sinuous, broad rounded apex, with a conspicuous median sulcus extending beyond midlength.