gyrus

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Related to dentate gyrus: hippocampal sulcus, Ammon's horn, subiculum

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 ?
Neurogenesis in the adult brain is a normal process to generate new neurons and occurs throughout life in restricted brain regions, which is called neurogenic regions, such as the subgranular zone (SGZ) of the dentate gyrus (DG) of the hippocampus and the subventricular zone of the lateral ventricle in mammals.
Immunostaining revealed extensive and severe tau pathology, which was characteristic of Braak stage VI (eg, with additional involvement of primary visual cortex and dentate gyrus in addition to hippocampus proper and subiculum, cingulate and association cortices, periventricular thalamus, and basal forebrain).
To narrow down their search, Medrihan and Sagi focused on a particular group of cells called cholecystokinin (CCK)-expressing neurons in the part of the brain known as the dentate gyrus.
The canonical niches for neural stem cells (NSCs) in the brain are the subventricular zone and the dentate gyrus [7].
Extranuclear estrogen receptor beta immunoreactivity is on doublecortin-containing cells in the adult and neonatal rat dentate gyrus.
McGinty, "Rapid eye movement sleep deprivation contributes to reduction of neurogenesis in the hippocampal dentate gyrus of the adult rat," Sleep, vol.
Some of the connections were even long-range, linking new neurons in the dentate gyrus to other brain regions to form circuits that may play important roles in memory and navigation.
The extracts had hypoalgesic effects and significantly increased the density of granule cells in the diabetic rat dentate gyrus, which can improve cognitive impairment in diabetics.
Besides improvements on the memory test -- a pattern recognition test involving the kind of skill used in remembering where you parked the car or recalling the face of someone you just met -- researchers found increased function in an area of the brain's hippocampus called the dentate gyrus which involves memory.
Both functions involve the dentate gyrus region of the hippocampus, which is especially susceptible to age-related changes.
reported that the exposure to the noise during pregnancy decreased neurogenesis in dentate gyrus of the hippocampus.
Adult neurogenesis is regulated by adrenal steroids in the dentate gyrus.