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Related to frontal lobe: occipital lobe, parietal lobe, temporal lobe, frontal lobe syndrome, frontal lobe dementia
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.
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.
occipital lobe the most posterior portion of each cerebral hemisphere, forming a small part of its posterolateral surface. See illustration.
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.
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.
fron·tal lobe of cer·e·brum[TA]
the portion of each cerebral hemisphere anterior to the central sulcus.
Farlex Partner Medical Dictionary © Farlex 2012
The largest and most anterior part of each cerebral hemisphere.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
frontal lobeThe large, foremost part of the brain. This part constitutes about one-third of the brain and is much more fully developed than in any other primate. Damage to the frontal lobe causes general disturbance of thinking, impairment of initiative and spontaneity, loss of strength of personality, and, if the rear part of the lobe is affected, paralysis.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
frontal lobethe anterior part of each cerebral hemisphere in mammals.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
The largest, most forward-facing part of each side or hemisphere of the brain.
Mentioned in: Aphasia
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.