lobe (lōb)
Temporal lobe
temporal 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
1. precuneus.
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.
| temporal lobe n. The lowest of the major subdivisions of the cortical mantle of the brain, containing the sensory center for hearing and forming the rear two thirds of the ventral surface of the cerebral hemisphere. It is separated from the frontal and parietal lobes above it by the fissure of Sylvius. |
Temporal lobe
The part of each side or hemisphere of the brain that is on the side of the head, nearest the ears.
Mentioned in: Aphasia
temporal lobe,
the lateral region of the cerebrum, below the lateral fissure. Within the temporal lobe of the brain is the center for smell and some association areas for memory and learning. Compare frontal lobe, occipital lobe, parietal 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.
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
1. precuneus.
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.
temporal lobe,
n the lateral region of the cerebrum, below the lateral fissure. It contains the center for smell, some association areas for memory and learning, and a region where choice is made of thoughts to express.
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.
temporal
1. pertaining to the temple. Said of bones and muscles—see Tables 10 and 13.
2. pertaining to time; limited as to time; temporary.
temporal distribution
distribution of events or population in chronological time; a suitable scatter graph may reveal clusters that have epidemiological significance.
temporal lobe
a long, tongue-shaped process constituting the lower lateral portion of the cerebral hemisphere.
temporal summation
occurs in the transmission of nerve impulses when a volley of impulses arrives at a synapse so that the duration of the impulses is briefer than the postsynaptic potential and their deliveries of transmitter are combined to create a larger than normal response.
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