olfactory lobe


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Related to olfactory lobe: bulbus olfactorius

olfactory lobe

n.
A projection of the lower anterior portion of each cerebral hemisphere, functioning in the sense of smell.

olfactory lobe

Etymology: L, olfactus, sense of smell; Gk, lobos, lobe
a structure involved in the sense of smell in lower animals. Vestiges of the tissue are found in the cerebral hemispheres of humans.

olfactory lobe

The olfactory bulb and tract. Synonym: rhinencephalon
See: olfactory nerve for illus
See also: lobe

olfactory lobe

a projection of the frontal lobe of a cerebral hemisphere that is well-developed in most vertebrates, but reduced in humans, from which arises the olfactory nerve. It is associated with the sense of smell.
References in periodicals archive ?
The connections between the olfactory receptors on the external structures and the olfactory lobes within the brain are structurally simple and are modest in number of neurons (Sandeman and Sandeman, 1991).
In decapods, as in insects, this pathway is composed of two elements: bilateral glomerular neuropils of the deutocerebrum, where olfactory afferents transmit information onto local interneurons and projection neurons (antennal lobes in insects; olfactory lobes in decapods); and bilateral second-order neuropils of the protocerebrum, to which the projection neurons ascend (mushroom bodies in insects; hemiellipsoid bodies in decapods) (e.
Though their brains are smaller than a human's, dogs have 25 times more smell receptors, and their olfactory lobes are four times bigger.
These sensory neuropils include olfactory lobes (OLs), which receive input from aesthetasc chemoreceptors (Mellon and Munger, 1990; Sandeman et al.
However, glomeruli that characterize the olfactory lobes in many animals (Hallberg et al.