lobe

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Related to Lobes: parietal lobes, Temporal lobes

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.

lobe

(lōb), [TA]
1. One of the subdivisions of an organ or other part, bounded by fissures, sulci, connective tissue septa, or other structural demarcations.
See also: lobule.
2. A rounded projecting part, as the lobe of the ear.
See also: lobule.
3. One of the larger divisions of the crown of a tooth, formed from a distinct point of calcification.
Synonym(s): lobus [TA]
[G. lobos, lobe]

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.lo´bar

caudate lobe  a small lobe of the liver between the inferior vena cava and the left lobe.
ear lobe  the lower fleshy part of the external ear.
frontal lobe  the rostral (anterior) portion of the cerebral hemisphere.
hepatic lobes  the lobes of the liver, designated the right and left and the caudate and quadrate.
insular lobe  insula.
occipital lobe  the most posterior portion of the cerebral hemisphere, forming a small part of its dorsolateral surface.
parietal lobe  the upper central portion of the cerebral hemisphere, between the frontal and occipital lobes, and above the temporal lobe.
polyalveolar lobe  a congenital disorder characterized in early infancy by far more than the normal number of alveoli in the lung lobes; 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.
spigelian lobe  caudate l. of liver.
temporal lobe  the lower lateral lobe of the cerebral hemisphere.

lobe

(lōb)
n.
1. A rounded projection, especially a rounded, projecting anatomical part: the lobe of an ear.
2. A subdivision of a bodily organ or part bounded by fissures, connective tissue, or other structural boundaries.

lobe

[lōb]
Etymology: Gk, lobos
1 a roundish projection of any structure.
2 a part of any organ, demarcated by sulci, fissures, or connective tissue, as the lobes of the brain, liver, and lungs. lobar, lobular, adj.

lobe

1. A subdivision of an organ–eg, liver–2 lobes; lung–2 lobes left, 3 lobes right; breast–15-20 lobes; brain–2 lobes, divided by fissures, connective tissue or other natural boundaries. See Temporal lobe.
2. A rounded projecting portion, such as the lobe of the ear.

lobe

(lōb) [TA]
1. One of the subdivisions of an organ or other part, bounded by fissures, connective tissue, septa, or other structural demarcations.
Synonym(s): lobus [TA] .
2. A rounded projecting part, as the lobe of the ear.
See also: lobule
3. One of the larger divisions of the crown of a tooth, formed from a distinct point of calcification.
Synonym(s): lobus [TA] .
[G. lobos, lobe]

lobe

A well-defined subdivision of an organ. Many organs, such as the brain, the lung, the liver, the pituitary, the thyroid gland and the prostate gland, are divided into lobes.

lobe

subsection within e.g. brain (frontal, occipital, parietal, temporal) and organ, gland or leukocyte nucleus

lobe

(lōb) [TA]
1. One of the larger divisions of tooth crown, formed from a distinct point of calcification.
2. One of the subdivisions of an organ or other part, bounded by fissures, sulci, connective tissue septa, or other structural demarcations.
[G. lobos, lobe]

lobe

1. a more or less well-defined portion of an organ or gland.
2. one of the main divisions of a tooth crown.

caudate lobe
a small dorsally located lobe of the liver to the right of the caudal vena cava that frequently embraces the right kidney.
ear lobe
an elevated area of skin just below the external auditory meatus in birds.
frontal lobe
the anterior portion of the gray matter of the cerebral hemisphere.
hepatic lobe
one of the lobes of the liver.
occipital lobe
the most posterior portion of the cerebral hemisphere, forming a small part of its dorsolateral surface.
parietal lobe
the upper central portion of the gray matter of the cerebral hemisphere, between the frontal and occipital lobes, and above the temporal lobe. See also parietal lobe.
prefrontal lobe
the part of the brain rostral to the ascending convolution.
quadrate lobe
1. precuneus.
2. a small lobe of the liver, between the gallbladder on the right, and the left lobe.
temporal lobe
the lower lateral portion of the cerebral hemisphere.
References in periodicals archive ?
Paraproct divided into 3 lobes; inner lobe slightly sclerotized, slender, with a short darkly sclerotized line medially; median lobe slightly sclerotized and broad basally, slender medially, and bending to the dorsal surface thereafter, bearing several long spines on the membranous apex; outer lobe sclerotized, shorter than median lobe, slender basally, rows of finer spines on the olive-shaped apical portion (Fig.
The frontal lobes are an area in the brain of mammals located at the front of each cerebral hemisphere and are thought to be critical for advanced intelligence.
It concludes that the size of our frontal lobes cannot solely account for humans' superior cognitive abilities.
To find out more about what different parts of the frontal lobes do, neuroscientists at the California Institute of Technology (Caltech) recently teamed up with researchers at the world's largest registry of brain-lesion patients.
On thyroid ultrasonography the right lobe was 43 x 19 x 16 mm and the left lobe was 33x11x10 mm in diameter with a prominent heterogeneity on the right compared to the left lobe of the thyroid parenchyma.
His lobes are so flexible because he started tugging on them when he was a child.
the Company) (TSX: MPV, AMEX: MDM) today announced the results of the 5034EeAaNorth Lobe large-diameter core drilling program conducted during the summer of 2007.
As the gametophytes aged, more lobes formed, and the previously formed lobes were displaced to the sides of the larger base.
PET/CT is more sensitive than ictal single-photon emission computed tomography (SPECT) imaging, MRI diffusion imaging (MRI-DI), and electroencephalography, and can play a pivotal role in the preoperative imaging work-up of patients with temporal lobe epilepsy, Dr.
Chest radiography revealed a 3 X 4 cm left upper lobe lung mass with an unremarkable right lung field.
The movement that you feel now is the upper lobes of your lungs filling.
Highly educated older adults recruit the frontal brain into a memory system that partly compensates for declining efficiency in neural structures of the temporal lobes, Springer's group proposes in the March Neuropsychology.