Chemoreception and the sense of smell

2019 ◽  
pp. 132-158
Author(s):  
Gordon L. Fain
Keyword(s):  
Olfactory Epithelium ◽  
Olfactory Receptor ◽  
Olfactory System ◽  
Vomeronasal Organ ◽  
Sensory Transduction ◽  
General Description ◽  
Receptor Proteins ◽  
Sense Of Smell ◽  
Anatomy And Physiology ◽  
Accessory Olfactory System

“Chemoreception and the sense of smell” is the seventh chapter of the book Sensory Transduction and begins with a general description of chemoreception, including chemotaxis in bacteria. It then describes olfaction in insects, including new discoveries of the nature of insect receptor proteins and the coding of olfaction in insects. It proceeds to review olfaction in vertebrates, beginning with the primary olfactory epithelium. It describes olfactory receptor proteins, the mechanism of olfactory transduction, and pathways of desensitization and adaptation. The basis of coding in the principal olfactory epithelium is described together with the anatomy and physiology of the olfactory bulb. A final section is provided on the accessory olfactory system and vomeronasal organ, including a description of receptor proteins, transduction cascades, and wiring to the accessory olfactory bulbs.

scholarly journals Neural pathways of olfactory kin imprinting and kin recognition in zebrafish

2021 ◽  
Vol 383 (1) ◽  
pp. 273-287
Author(s):  
Gabriele Gerlach ◽  
Mario F. Wullimann
Keyword(s):  
Teleost Fish ◽  
Olfactory System ◽  
Cognitive Skills ◽  
Kin Recognition ◽  
Vomeronasal Organ ◽  
Medial Amygdala ◽  
Neural Pathways ◽  
Neuronal Circuits ◽  
Accessory Olfactory System

Abstract Teleost fish exhibit extraordinary cognitive skills that are comparable to those of mammals and birds. Kin recognition based on olfactory and visual imprinting requires neuronal circuits that were assumed to be necessarily dependent on the interaction of mammalian amygdala, hippocampus, and isocortex, the latter being a structure that teleost fish are lacking. We show that teleosts—beyond having a hippocampus and pallial amygdala homolog—also have subpallial amygdalar structures. In particular, we identify the medial amygdala and neural olfactory central circuits related to kin imprinting and kin recognition corresponding to an accessory olfactory system despite the absence of a separate vomeronasal organ.

scholarly journals Extinction reverses olfactory fear-conditioned increases in neuron number and glomerular size

2015 ◽  
Vol 112 (41) ◽  
pp. 12846-12851 ◽  
Author(s):  
Filomene G. Morrison ◽  
Brian G. Dias ◽  
Kerry J. Ressler
Keyword(s):  
Olfactory Bulb ◽  
Learning And Memory ◽  
Olfactory Epithelium ◽  
Olfactory System ◽  
Structural Changes ◽  
Freezing Behavior ◽  
Extinction Training ◽  
Odor Stimulus ◽  
Main Olfactory Epithelium ◽  
Odor Learning

Although much work has investigated the contribution of brain regions such as the amygdala, hippocampus, and prefrontal cortex to the processing of fear learning and memory, fewer studies have examined the role of sensory systems, in particular the olfactory system, in the detection and perception of cues involved in learning and memory. The primary sensory receptive field maps of the olfactory system are exquisitely organized and respond dynamically to cues in the environment, remaining plastic from development through adulthood. We have previously demonstrated that olfactory fear conditioning leads to increased odorant-specific receptor representation in the main olfactory epithelium and in glomeruli within the olfactory bulb. We now demonstrate that olfactory extinction training specific to the conditioned odor stimulus reverses the conditioning-associated freezing behavior and odor learning-induced structural changes in the olfactory epithelium and olfactory bulb in an odorant ligand-specific manner. These data suggest that learning-induced freezing behavior, structural alterations, and enhanced neural sensory representation can be reversed in adult mice following extinction training.

Physiology and Pharmacology of the Accessory Olfactory System

1992 ◽  
pp. 49-54 ◽  
Author(s):  
H. Kaba ◽  
C.-S. Li ◽  
E. B. Keverne ◽  
H. Saito ◽  
K. Seto
Keyword(s):  
Olfactory System ◽  
Accessory Olfactory System

scholarly journals Development of the Olfactory Epithelium and Vomeronasal Organ in the Japanese Reddish Frog, Rana japonica.

1996 ◽  
Vol 58 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Kazumi TANIGUCHI ◽  
Yoshinori TOSHIMA ◽  
Toru R. SAITO ◽  
Kazuyuki TANIGUCHI
Keyword(s):  
Olfactory Epithelium ◽  
Vomeronasal Organ ◽  
Rana Japonica

scholarly journals The Development of Olfactory Organ of Lissotriton Vulgaris (Amphibia, Caudata)

2015 ◽  
Vol 49 (6) ◽  
pp. 559-566 ◽  
Author(s):  
M. F. Kovtun ◽  
Ya. V. Stepanyuk
Keyword(s):  
Nasal Cavity ◽  
Olfactory Epithelium ◽  
Vomeronasal Organ ◽  
Developmental Period ◽  
Olfactory Organ ◽  
Peripheral Part ◽  
Lissotriton Vulgaris ◽  
Olfactory Analyzer ◽  
Gland Development ◽  
Olfactory Pit

Abstract The Development of Olfactory Organ of Lissotriton vulgaris (Amphibia, Caudata). Kovtun, M. F, Stepanyuk, Ya. V. - Using common histological methods, the morphogenesis of olfactory analyzer peripheral part of Lissotriton vulgaris (Amphibia, Caudata) was studied, during the developmental period starting with olfactory pit laying and finishing with definitive olfactory organ formation. Special attention is paid to vomeronasal organ and vomeronasal gland development. Reasoning from obtained data, we consider that vomeronasal organ emerged as the result of olfactory epithelium and nasal cavity differentiation.

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