insula

(redirected from Insular cortex)
Also found in: Dictionary, Legal, Encyclopedia, Wikipedia.

island

 [i´land]
a cluster of cells or an isolated piece of tissue.
blood i's aggregations of mesenchymal cells in the angioblast of the embryo, developing into vascular endothelium and blood cells.
i's of Langerhans islets of Langerhans.
island of Reil insula.

in·su·la

, gen. and pl.

in·su·lae

(in'sū-lă, -lē), [TA]
1. An oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure), separated from the adjacent frontal, parietal, and temporal opercula by the circular sulcus of insula. Synonym(s): insular area, insular cortex, island of Reil
2. Synonym(s): island
3. Any circumscribed body or patch on the skin.
[L. island]

insula

(ĭn′sə-lə, ĭns′yə-)
n. pl. insu·lae (-lē′)
An oval region found in each hemisphere of the cerebral cortex, lateral to the lentiform nucleus and situated within the sylvian fissure, involved in sensation, emotion, and autonomic function. Also called island of Reil.

in·su·la

(in'sū-lă) [TA]
1. An oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure).
Synonym(s): island of Reil.
2. Synonym(s): island.
3. Any circumscribed body or patch on the skin.
[L. island]

Reil,

Johann C., German physician, neurologist, and histologist, 1759-1813.
circular sulcus of Reil - a semicircular fissure. Synonym(s): circular sulcus of insula; limiting sulcus of Reil
island of Reil - an oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure). Synonym(s): insula; insular area; insular cortex
limiting sulcus of Reil - Synonym(s): circular sulcus of Reil
Reil ansa - a complex fiber bundle. Synonym(s): ansa peduncularis
Reil band - Synonym(s): medial lemniscus; septomarginal trabecula
Reil ribbon - Synonym(s): medial lemniscus
Reil triangle - Synonym(s): lemniscal trigone
References in periodicals archive ?
Next they examined the effects of delivering drugs that either activate serotonin-3 receptors or block serotonin-3 receptors to specific regions of the insular cortex. In the visceral insular cortex, but not the gustatory insular cortex, activating serotonin caused nausea (produced gaping reactions) and blocking serotonin reduced nausea (eliminated gaping reactions).
"For this study we wanted to investigate whether the social impact of psoriasis is associated with altered cognitive processing in response to facial expressions of disgust by measuring brain activity in the insular cortex.
Huang et al., "Blockage of the habenular nucleus can eliminate dyspnea induced by electrostimulation of the insular cortex," Neural Regeneration Research, vol.
31P MRS showed a newly decreased Pi/PCr ratio in the border area between MCA and PCA territories and the insular cortex of the left side (Figure 3(b); Table 1), again in an area with a moderately increased MTT (3.462 sec), which was shorter than in the ventral adjacent MCA territory (3.962 sec; Figure 3(b)).
Due to progressively odd behavior, magnetic resonance imaging (MRI) was obtained, which showed a new brain lesion in the left dorsal insular cortex. She was transferred to our large tertiary care center for further evaluation and management.
Using neuroimaging methods such as PET-scan and functional MRI, a complex cortical network formed by insular cortex, anterior cingulate cortex and amygdala was identified, which seems to be involved in central control of autonomic nervous system [4].
The insula (also known as the insular cortex or insular lobe) was that portion of the cerebral cortex folded deep within the lateral sulcus.{Figure 1}
An MRI of the brain showed multiple focal areas of abnormal signal intensity within the right frontal and temporal cortex, medial parietal cortex, basal ganglia and the insular cortex region.
Linear incision over insular cortex was performed between superior and inferior trunks of an M2 segment of middle cerebral artery.
Nausea centres reside in the forebrain, but activation of insular cortex during nausea links this area to the vomiting (Sharkey et al 2014).