parietal lobe


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

lobe

 [lōb]
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.

pa·ri·e·tal lobe of cer·e·brum

[TA]
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]

parietal lobe

n.
The division of each hemisphere of the brain that lies beneath each parietal bone.

parietal lobe

The major lobe in each half of the brain (cerebral hemisphere) that lies under each parietal bone.
References in periodicals archive ?
Parietal lobe was found to be the most commonly involved lobe due to infarction of the middle cerebral artery.
Xenomelia may be related to anomalous brain development, with a lack of neural representation of a limb in the right parietal lobe.
Significant main effects were found for lobe (F(3,54) = 10.66, p < 0.001; N2 amplitudes in the occipital lobe and the parietal lobe were significantly larger than those in the frontal lobe (p <0.01) and temporal lobe (p < 0.05)) and hemisphere (F(1,18) = 5.50, p <0.001; N2 amplitude in the right hemisphere was significantly larger than that in the left hemisphere).
OCD patients showed, when compared with NCC, a significant decrease in gray matter volume of the left superior parietal lobe t(28)= 3.96, p<.0001 contrasting with a significant increase of gray matter in the right middle frontal gyrus t (28)= 4.14, p<.0001.
When observing their "obese" bodies--using a virtual reality headset--participants in the study experienced brain activity in the parietal lobe, the area of the brain associated with body perception, and activity in the anterior cingulate cortex, the brain area associated with processing subjective emotions, such as fear and anger.
Supratentorial disease is characterized by bilateral white matter hyperintensities with occipital and parietal lobe predominance.
The Parietal lobe and Temporal lobe are part of which organ of the body?
Specifically, they address integrative visual agnosia, picture identification, visual search and stimulus similarity, orthographic processing in visual word identification, non-spatial extinction following lesions of the parietal lobe, visual marking, action-based effects on object selection, theory of mind, memory-based guidance on visual selection, the salience of stimuli in selecting visual information, learned conjunctive relations, social attention, and cognition and stroke.
Results: The main areas with increased brain activation were in frontal and parietal lobe, including left medial frontal gyrus, left inferior frontal gyrus, right middle frontal gyrus, right postcentral gyrus, and inferior parietal lobule in patients after CRT, yet no decreased brain activation was found.
Recent studies have identified possible links between spatial awareness and higher levels of testosterone in men and gender differences in the structure of the parietal lobe of the brain.
"There are multiple heterogeneously enhancing lesions within the right parietal lobe and superior temporal gyrus, which cross the midline just posterior to the splenium of the corpus callosum.
Regarding regions of the brains, MeDi was associated with increased volume in the cingulate cortex, parietal lobe, temporal lobe, and hippocampus.