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hemisphere

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hemisphere

 [hem´ĭ-sfēr]
half of a spherical or roughly spherical structure or organ.
cerebral hemisphere one of the paired structures constituting the largest part of the brain, which together comprise the extensive cerebral cortex, centrum semiovale, basal ganglia, and rhinencephalon, and contain the lateral ventricle. See also brain.
cerebellar hemisphere either of the paired portions of the cerebellum lateral to the vermis.
dominant hemisphere the cerebral hemisphere that is more concerned than the other in the integration of sensations and the control of many functions. See also laterality.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

hem·i·sphere

(hem'i-sfēr), [TA]
Half a spheric structure.
Synonym(s): hemispherium [TA]
[hemi- + G. sphaira, ball, globe]
Farlex Partner Medical Dictionary © Farlex 2012

hemisphere

(hĕm′ĭ-sfîr′)
n.
1.
a. A half of a sphere bounded by a great circle.
b. A half of a symmetrical, approximately spherical object as divided by a plane of symmetry.
2. Either half of the celestial sphere as divided by the ecliptic, the celestial equator, or the horizon.
3. Either the northern or southern half of the earth as divided by the equator or the eastern or western half as divided by a meridian.
4. Anatomy
a. Either of the lateral halves of the cerebrum; a cerebral hemisphere.
b. Either of the lateral halves of the cerebellum; a cerebellar hemisphere.

hem′i·spher′ic (-sfîr′ĭk, -sfĕr′-), hem′i·spher′i·cal adj.
hem′i·spher′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

hem·i·sphere

(hem'is-fēr) [TA]
Half of a spheric structure.
Synonym(s): cerebral hemisphere (1) , hemisphericum.
[hemi- + G. sphaira, ball, globe]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Hemisphere

One of the two halves or sides-the left and the right-of the brain.
Mentioned in: Aphasia
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

hem·i·sphere

(hem'is-fēr) [TA]
Half a spheric structure.
[hemi- + G. sphaira, ball, globe]
Medical Dictionary for the Dental Professions © Farlex 2012
Mentioned in
References in periodicals archive
The Group 2 buttons have been organized in three types according to their morphology: buttons with sketched appendices--resembling the shape of a turtle, Type 1--, buttons with well-defined, flat wings--Type 2--and buttons or beads with hemispheric appendices--Type 3--.
3.2% and 4.3% of right-sided hemispheric stroke patients had motor or sensory aphasia and global aphasia (p < 0.001), respectively.
Prior to signal recording, hemispheric dominance and hand preference tests were applied per subject.
Ito et al found that among their departmentbased records of 383 cases between April 2003 and March 2006, 52% patients had left hemispheric stroke and 48% had right hemispheric stroke17.
The present study was thus designed to study the effect of both normal aging and vascular disease on selective attention as well as on the hemispheric pattern of specialization for these processes.
(14) shows the total size of the CC in females to be unrelated to hemispheric asymmetry.
We know that 70% to 95% of people are right-handed, yet 96 percent of these people show left-brain language hemispheric dominance.
It was the first such gathering in eight years and it breathed new life into the high-level hemispheric dialogue in the area of tourism.
Using the fictional character of William Faulkner's Thomas Sutpen in Absalom, Absalom!--the slaveholder who went to the West Indies before his rise to fortune in the Old South--Guterl shows convincingly how the cosmopolitan dimension of the southern master class should prompt us to go well beyond old-fashioned studies of national histories of slavery, and to focus, instead, in classic 'transnational' fashion, on what he calls the '"hemispheric engagements' that shaped southern slaveholding" (7).
In the run-up to the Summit of the Americas in Port of Spain last June there were extraordinary expectations about a "New Hemispheric Agenda." It was assumed that with a new American administration under charismatic new leadership there would be a break from the policies of the preceding Iraq-obsessed Bush administration.
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