central sulcus


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

sulcus

 [sul´kus] (L.)
a groove or furrow; used in anatomic nomenclature to designate a linear depression, especially one of the cerebral sulci.
basilar sulcus a groove in the midline of the anterior surface of the pons, lodging the basilar artery.
calcarine sulcus a sulcus of the medial surface of the occipital lobe, separating the cuneus from the lingual gyrus.
central sulcus fissure of Rolando.
cerebral sulci the furrows on the surface of the brain between the gyri (see gyrus).
Cerebral sulci, showing some major ones on the superolateral surface of the left cerebral hemisphere. From Dorland's, 2000.
collateral sulcus collateral fissure.
sul´ci cu´tis fine depressions of the skin between the ridges of the skin.
gingival sulcus the space between the surface of the tooth and the epithelium lining the free gingiva.
hippocampal sulcus hippocampal fissure.
posterior median sulcus posterior median fissure.

cen·tral sul·cus

[TA]
a double-S-shaped fissure extending obliquely upward and backward on the lateral surface of each cerebral hemisphere at the boundary between frontal and parietal lobes.

cen·tral sul·cus

(sen'trăl sŭl'kŭs) [TA]
A double S-shaped fissure extending obliquely upward and backward on the lateral surface of each cerebral hemisphere at the boundary between frontal and parietal lobes.

Rolando,

Luigi, Italian anatomist, 1773-1831.
fissure of Rolando - a double S-shaped fissure extending obliquely upward and backward on the lateral surface of each cerebral hemisphere at the boundary between frontal and parietal lobes. Synonym(s): central sulcus
rolandic epilepsy - a benign autosomal dominant form of epilepsy occurring in children.
Rolando angle - the angle at which the fissure of Rolando meets with the midplane.
Rolando area - the region of the cerebral cortex most immediately influencing movements of the face, neck and trunk, arm, and leg. Synonym(s): motor cortex
Rolando cells - the nerve cells in Rolando gelatinous substance of the spinal cord.
Rolando column - a slight ridge on either side of the medulla oblongata related to the descending trigeminal tract and nucleus.
Rolando gelatinous substance - the apical part of the posterior horn of the spinal cord's gray matter, composed largely of very small nerve cells. Synonym(s): gelatinous substance
Rolando tubercle - a longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum. Synonym(s): tuberculum cinereum
References in periodicals archive ?
Black dash line represents the central sulcus. (M = motor, S = sensory).
We confirmed that these regions do indeed pertain to the SMN by an independent FC analysis in the entire group (n = 30), using the left central sulcus (Talairach coordinates: [-36, -24,49] [31]) as a seed region (Figure 2(d)).
STATISTICAL ANALYSIS: Mean values of width of left and right central sulcus, superior frontal sulcus, parietooccipital sulcus.
[Table.1] Null hypothesis: there exists no significant relationship between the width of left central sulcus of group 1 and 2.
[Table.2] Null hypothesis: there exists no significant relationship between the width of right central sulcus of group 1 and 2.
The motor threshold (MT) was defined as the lowest stimulation strength (in V/m) and in stimulator output (%) to produce a response of greater than 50 [micro]V in the paretic abductor pollicis brevis muscle (APB) and to locate the central sulcus functionally.
During covert naming, larger lesion size predicted widespread right hemisphere activity, especially in the central sulcus, POp, and PTr, but also in bilateral visual cortex, cingulate, IPS, and basal ganglia.

Full browser ?