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Related to atrioventricular sulcus: atrioventricular groove, Coronary groove


n. pl. sul·ci (-kī, -sī)
1. A deep, narrow furrow or groove, as in an organ or tissue.
2. Any of the narrow fissures separating adjacent convolutions of the brain.


sul′cal adj.


n, pl -ci (-saɪ)
1. a linear groove, furrow, or slight depression
2. (Anatomy) any of the narrow grooves on the surface of the brain that mark the cerebral convolutions. Compare fissure
[C17: from Latin]


(ˈsʌl kəs)

n., pl. -ci (-sī).
Anat. a groove or fissure, esp. a fissure between two convolutions of the brain.
[1655–65; Latin: furrow]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sulcus - (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
fissure - (anatomy) a long narrow slit or groove that divides an organ into lobes
central sulcus, fissure of Rolando, Rolando's fissure, sulcus centralis - a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes
fissure of Sylvius, lateral cerebral sulcus, sulcus lateralis cerebri, Sylvian fissure - the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres
parieto-occipital fissure, parieto-occipital sulcus - a sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres
calcarine fissure, calcarine sulcus - a sulcus in the mesial surface of the occipital lobe of the cerebrum
anatomy, general anatomy - the branch of morphology that deals with the structure of animals
References in periodicals archive ?
In the first one, the right coronary artery was originating from the pulmonary trunk from its anterior aspect, turned to the right, reached the atrioventricular sulcus and coursed normally.
The mass was surrounding the right atrium from posterior, lateral and inferior walls and invading the atrioventricular sulcus and the inferior vena cava wall (Fig.
Similarly, for an artery to be defined as the LCX, it should course through the left atrioventricular sulcus and provide at least one obtuse marginal (OM) branch.
After origin, it extended to the right behind the pulmonary trunk and thereafter between the pulmonary trunk and the right atrium and then in the right anterior atrioventricular sulcus to reach the acute margin of the heart, where it turned around to lie in the posterior atrioventricular sulcus (Fig.

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