SULCUS (sulci)

Pronunciation (US):

(GB):

Irregular inflected form: sulci   

 Dictionary entry overview: What does sulcus mean? 

• SULCUS (noun)
  The noun SULCUS has 1 sense:

1. (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain

  Familiarity information: SULCUS used as a noun is very rare.

 Dictionary entry details 

• SULCUS (noun)

Sense 1

Meaning:

(anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain

Classified under:

Nouns denoting body parts

Hypernyms ("sulcus" is a kind of...):

fissure ((anatomy) a long narrow slit or groove that divides an organ into lobes)

Domain category:

anatomy; general anatomy (the branch of morphology that deals with the structure of animals)

Hyponyms (each of the following is a kind of "sulcus"):

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)

 Context examples 

The point at which the gingival sulcus terminates because the tissue attaches directly to the tooth.

(Bottom of Gingival Sulcus, NCI Thesaurus)

A meningioma that affects the cerebral sulcus.

(Cerebral Convexity Meningioma, NCI Thesaurus)

A gyrus or ridge on the outer surface of the temporal lobe between the superior and middle temporal sulci.

(Middle Temporal Gyrus, NCI Thesaurus)

A gyrus or ridge on the outer surface of the temporal lobe below the middle sulcus.

(Inferior Temporal Gyrus, NCI Thesaurus)

A vein originating at the apex of the heart that ascends along the posterior interventricular sulcus and drains into the coronary sinus.

(Middle Cardiac Vein, NCI Thesaurus)

A groove or cleft that divides the outer surface of the temporal lobe running in the same direction but at a lower level to the superior temporal sulcus.

(Middle Temporal Sulcus, NCI Thesaurus)

A meningioma that affects the olfactory sulcus.

(Olfactory Groove Meningioma, NCI Thesaurus)

An inflammatory process of the gingival tissues and/or periodontal membrane of the teeth, resulting in an abnormally deep gingival sulcus, possibly producing periodontal pockets and loss of alveolar bone support.

(Periodontal Disorder, NCI Thesaurus)

A terminal branch of the anterior cerebral artery that runs in the pericallosal sulcus and branches to form the inferior and superior internal parietal arteries and precuneal artery supplying the cerebral cortex.

(Pericallosal Artery, NCI Thesaurus)

It is usually caused by a malignant neoplasm in the superior pulmonary sulcus.

(Pancoast Syndrome, NCI Thesaurus)