parietal lobe

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Related to Parietal area: parietal lobes


1. a more or less well defined portion of an organ or gland.
2. one of the main divisions of a tooth crown.
azygos lobe (lobe of azygos vein) a small anomalous lobe situated at the apex of the right lung, produced when the azygos vein arches over the upper part of the lung instead of at the hilus and presses deeply into the lung tissue to form a fissure that isolates a medial part of the lung.
caudate lobe a small lobe of the liver between the inferior vena cava on the right and the left lobe.
ear lobe the lower fleshy, noncartilaginous portion of the external ear.
flocculonodular lobe one of the main subdivisions of the cerebellum, located inferiorly, consisting of the paired flocculi, their peduncles, and the nodule of the vermis.
frontal lobe the anterior portion of the gray matter of each cerebral hemisphere.
hepatic lobe one of the lobes of the liver, designated the right and left and the caudate and quadrate.
l's of lung the five major subdivisions of the lungs. see accompanying illustration and see lung.
The lobes of the lungs. From Frazier et al., 2000.
occipital lobe the most posterior portion of each cerebral hemisphere, forming a small part of its posterolateral surface. See illustration.
The occipital lobe of the brain. From Applegate, 2000.
parietal lobe the upper central portion of the gray matter of each cerebral hemisphere, between the frontal lobe and the occipital lobe and above the temporal lobe. It is the receptive area for fine sensory stimuli, and the highest integration and coordination of sensory information is carried on here. Damage to it can produce defects in vision or aphasia.
polyalveolar lobe a congenital disorder characterized in early infancy by the presence of far more than the normal number of alveoli in a lobe of the lungs; thereafter, normal multiplication of alveoli does not take place and they become enlarged, i.e., emphysematous.
quadrate lobe
2. a small lobe of the liver, between the gallbladder on the right, and the left lobe.
Riedel's lobe an anomalous tongue-shaped mass of tissue projecting from the right lobe of the liver in some individuals.
spigelian lobe caudate lobe.
temporal lobe a long tongue-shaped process that is the lower lateral portion of each cerebral hemisphere.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pa·ri·e·tal lobe of cer·e·brum

the middle portion of each cerebral hemisphere, separated from the frontal lobe by the central sulcus, from the temporal lobe by the lateral sulcus in front and an imaginary line projected posteriorly, and from the occipital lobe only partially by the parietooccipital sulcus on its medial aspect.
Synonym(s): lobus parietalis [TA], parietal lobe [TA]
Farlex Partner Medical Dictionary © Farlex 2012

parietal lobe

The division of each hemisphere of the brain that lies beneath each parietal bone.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

parietal lobe

The major lobe in each half of the brain (cerebral hemisphere) that lies under each parietal bone.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
When actually using such implements, the same individuals display activity largely relegated to the parietal areas emphasized by Stout.
The increase in the SSVEP amplitude in the posterior parietal area during the working memory tasks compared to the CPT was consistent with the recent study by Silberstein (1997), that investigated spatial working memory using the SSPT.
Whilst all 28 electrodes are required to generate topographic maps our hypotheses direct attention particularly to the pre-motor and parietal areas. Rather than rely on visual inspection of the maps or on the limited statistical facilities built into the imager's software to identify changes in electrical activity we selected five frontal electrodes (F3, Fz, F4, F7 and F8) and nine parietal electrodes (TCP1, TCP2, CP1, CP2, P3, PZ, P4, PO1 and PO2) for statistical analysis.
We show that during stereo perception of false image appearing in front of the stereogram plane the power of alpha-band activity decreases in the left parietal area and frontal areas of the cortex, and this suppression of alpha rhythm is presumably associated with increased attention necessary for refocusing the eyes at the plane of the false image.
Taking into account the anatomical connectivity between parietal area PEc and motor areas, it is possible that the multiphasic pattern of activity of PEc optic flow neurons may prompt transient activation of the motor neurons.
This indicates that the commonest area of involvement over scalp was the Parietal area. This is statistically significant and correlates with the previous study.
Seventeen days after returning to Switzerland, he had a swelling in the right parietal area of the head.
Commonly, significant p values were detected around parietal area for all comparisons.
Single photon emission tomography using technetium-99mL, L-ethyl cysteinate dimer (99m Tc-ECD SPECT) showed decreased cerebral blood flow in the bilateral central areas, which extended to the frontal and parietal areas (Figure 2).
A restoration of activity is observed in both sensory and parietal areas after neglect recovery [10,13] or following effective rehabilitation [14,15].
The group difference was more distinct in parietal areas than in central, temporal, and occipital areas.
Theta band: ERD/ERS analysis in the Theta band (see Figure 1 and video in the supplemental material) revealed that Type 1 performance was mainly characterized by lower ERD and higher ERS in the bilateral prefrontal and temporal areas during T1 and T2, which also involved the fronto-central and parietal areas during T3.