gyrus


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gy·rus

 (jī′rəs)
n. pl. gy·ri (-rī′)
A rounded ridge, as on the surfaces of the cerebral hemispheres.

[Latin gȳrus, circle; see gyre.]

gyrus

(ˈdʒaɪrəs)
n, pl gyri (ˈdʒaɪraɪ)
another name for convolution3
[C19: from Latin; see gyre]

gy•rus

(ˈdʒaɪ rəs)

n., pl. gy•ri (ˈdʒaɪ raɪ)
a convoluted fold of the brain.
[1835–45; < Latin gȳrus; see gyre]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gyrus - a convex fold or elevation in the surface of the brain
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"
frontal gyrus - any of the convolutions of the outer surface of the frontal lobe of the cerebrum
temporal gyrus - any of the convolutions of the outer surface of the temporal lobe of the cerebrum
parietal gyrus - any of the convolutions of the outer surface of the parietal lobe of the cerebrum
occipital gyrus - any of the convolutions of the outer surface of the occipital lobe of the cerebrum
cerebrum - anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
central gyrus - either of two gyri on either side of the central sulcus
Translations

gy·rus

n. L. circunvolución, porción elevada de la corteza cerebral;
Broca's ______ de Broca, tercera, frontal inferior;
frontal, superior ______ frontal superior;
inferior, lateral occipital ______ occipital inferior lateral;
superior occipital ______ occipital superior.
References in periodicals archive ?
Areas of activation were observed bilaterally in the middle temporal gyrus (BA21) and the inferior frontal gyrus (BA47), the medial frontal gyrus (BA6) of the left hemisphere, the middle frontal gyrus (BA46) and the precentral gyrus (BA6)of the right hemisphere.
In addition, whenever there is hypogenesis or agenesis, there is failure of inversion of the cingulate gyrus.
But by the time kids become adults, that region takes a backseat when crunching numbers, and another part of the brain, called the left superior temporal gyrus, kicks in.
SHARES in surgery specialists Gyrus reached an all-time high after being snapped up by camera makers Olympus for pounds 935million.
Gyrus employs around 1,600 staff across the world, led by chief executive Roy Davis who has recently promoted after nearly four years as chief operating officer.
A study published in the March 27 Proceedings of the National Academy of Sciences (PNAS) suggests that exercise may improve a region of the brain within the hippocampus, the dentate gyrus, that's important for memory.
Reading, United Kingdom-based Gyrus Group PLC has begun manufacturing its disposable instruments for minimally invasive surgery in Saltillo, Mexico.
The PK working elements provide compatibility with Gyrus ACMI resectoscopes.
Increased brain activation was noted in both older patients and those with OSA, compared with controls, specifically in the left inferior parietal lobe, thalamus, caudate, middle temporal gyrus, and fusiform; in the right anterior cingulate; and in the bilateral precuneus and cerebellum.
MEDICAL equipment maker Gyrus was preparing for its assault on the market for general surgery after underlying profits more than doubled in 2005.
For example, when a girl skips rope, her mirror neurons fire in the inferior frontal gyrus of the brain.
To give surgeons greater control over this last procedure, thermal modification, Gyrus developed a specialized thermal control electrode.