| Library / English Dictionary |
SULCUS
| Pronunciation (US): |  | (GB): | |
Irregular inflected form: sulci
I. (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:
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 blood vessel that receives deoxygenated blood from the insula and gyri and drains into the basal vein of Rosenthal deep in the lateral sulcus.
(Deep Middle Cerebral Vein, NCI Thesaurus)
A meningioma that affects the frontal sulcus.
(Frontal Convexity Meningioma, NCI Thesaurus)
Bleeding that is induced by gentle manipulation of the gingival tissue at the depth of the gingival sulcus.
(Bleeding on Probing, NCI Thesaurus)
The second branch arising from the pericallosal artery within the cingulate sulcus that has branches supplying the medial and superolateral surfaces of each cerebral hemisphere.
(Callosomarginal Artery, NCI Thesaurus)
Couinaud segment I, located on the posterior surface of the liver between the sulcus for the vena cava and the ligamentum venosum.
(Caudate Lobe, NCI Thesaurus)
The convolutions or ridges between one or more sulci on the surface of the cerebral cortex.
(Cerebral Gyrus, NCI Thesaurus)
The posterior one third of the tongue behind the terminal sulcus that forms the anterior aspect of the oro-pharynx responsible for swallowing and modification of the voice in speech.
(Base of the Tongue, NCI Thesaurus)
A convolution in the temporal lobe between the interparietal sulcus and the central sulcus.
(Ascending Parietal Convolution, NCI Thesaurus)
A header term that encompasses the various cerebral sulcus terms.
(Cerebral Sulcus, NCI Thesaurus)
A branch off of the terminal section of the middle cerebral artery running through the cortex on both sides of the central sulcus.
(Central Artery, NCI Thesaurus)
