Respiratory system lab
... serous glands (Bowman's glands) that provide a fluid to wash away old odors. One of their distinctive structural characteristics is that their ducts enlarge just under the surface epithelium. Olfactory epithelium is made up of three cell types. Most numerous are sustentacular cells ( = supporting ce ...
... serous glands (Bowman's glands) that provide a fluid to wash away old odors. One of their distinctive structural characteristics is that their ducts enlarge just under the surface epithelium. Olfactory epithelium is made up of three cell types. Most numerous are sustentacular cells ( = supporting ce ...
Olfactory transmission of neurotropic viruses
... multiple cytochrome P450s and other biotransforming enzymes at levels higher than the liver, suggesting a role in detoxification. A mature ORN is bipolar in shape, with an apical dendrite that ends in a knob that elaborates into 12 or more cilia that splay out over the surface of the epithelium. The ...
... multiple cytochrome P450s and other biotransforming enzymes at levels higher than the liver, suggesting a role in detoxification. A mature ORN is bipolar in shape, with an apical dendrite that ends in a knob that elaborates into 12 or more cilia that splay out over the surface of the epithelium. The ...
Wang et al 2photon calcium imaging of odor in fly brain cell 2003
... 80 odorant receptor genes (Clyne et al., 1999; Vosshall et al., 1999; Gao and Chess, 1999; Vosshall et al., 2000; Scott et al., 2001; Dunipace et al., 2001) and 80% of the neurons also express a common receptor gene, Or83b (Vosshall et al., 2000). Neurons expressing the same receptors project with p ...
... 80 odorant receptor genes (Clyne et al., 1999; Vosshall et al., 1999; Gao and Chess, 1999; Vosshall et al., 2000; Scott et al., 2001; Dunipace et al., 2001) and 80% of the neurons also express a common receptor gene, Or83b (Vosshall et al., 2000). Neurons expressing the same receptors project with p ...
Anosmia and parosmia
... SMELL, or chemosensation, is a major function of the nose. Although humans are less reliant on olfaction compared with other mammals it remains a significant evolutionary contribution to our physiology.1 Smell has many functions including the basic surveillance of our environment through both our ol ...
... SMELL, or chemosensation, is a major function of the nose. Although humans are less reliant on olfaction compared with other mammals it remains a significant evolutionary contribution to our physiology.1 Smell has many functions including the basic surveillance of our environment through both our ol ...
English - SciELO México
... The capability to perceive and emit alarm substances, such as 2-heptanone, makes animals aware of the presence of danger, leading to some strategies directed towards survival. Strategies of survival involve emotional memory which is processed by deep temporal lobe structures, such as amygdaloid comp ...
... The capability to perceive and emit alarm substances, such as 2-heptanone, makes animals aware of the presence of danger, leading to some strategies directed towards survival. Strategies of survival involve emotional memory which is processed by deep temporal lobe structures, such as amygdaloid comp ...
An alarm pheromone increases the responsivity of
... The capability to perceive and emit alarm substances, such as 2-heptanone, makes animals aware of the presence of danger, leading to some strategies directed towards survival. Strategies of survival involve emotional memory which is processed by deep temporal lobe structures, such as amygdaloid comp ...
... The capability to perceive and emit alarm substances, such as 2-heptanone, makes animals aware of the presence of danger, leading to some strategies directed towards survival. Strategies of survival involve emotional memory which is processed by deep temporal lobe structures, such as amygdaloid comp ...
SCENTS AND SENSIBILITY: A MOLECULAR LOGIC OF OLFACTORY PERCEPTION
... (green). These neurons send axons that co-converge on the same glomerulus in the olfactory bulb. Neurons expressing other receptors converge on different glomerular loci that are shown schematically. All nuclei are stained blue with TOTO-3. The relative positions of the different glomeruli are maint ...
... (green). These neurons send axons that co-converge on the same glomerulus in the olfactory bulb. Neurons expressing other receptors converge on different glomerular loci that are shown schematically. All nuclei are stained blue with TOTO-3. The relative positions of the different glomeruli are maint ...
Special Senses
... b. olfactory bulb neurons inhibit mitral (tufted) cells c. neurons in the intermediate olfactory area can inhibit further action potentials ANSWER ...
... b. olfactory bulb neurons inhibit mitral (tufted) cells c. neurons in the intermediate olfactory area can inhibit further action potentials ANSWER ...
Full version (PDF file)
... rapidly activating A-type K+ current and delays rectifiertype K+ conductance and voltage-activated Ca2+ influx in the antennal lobe cells of moths (Mercer et al. 1995). In addition, 5-HT depolarizes the juxtaglomerular cells by activating 5-HT1C receptors in the olfactory bulb, and the action of 5-H ...
... rapidly activating A-type K+ current and delays rectifiertype K+ conductance and voltage-activated Ca2+ influx in the antennal lobe cells of moths (Mercer et al. 1995). In addition, 5-HT depolarizes the juxtaglomerular cells by activating 5-HT1C receptors in the olfactory bulb, and the action of 5-H ...
Anatomical organization of the central olfactory
... signal is one of the issues separating vertebrates and insects. In vertebrates, the chemosensory receptors belong to the G-protein-coupled family that generates action potentials via intracellular events (Buck & Axel, 1991). Insect odor receptors are however structurally, and genetically unrelated t ...
... signal is one of the issues separating vertebrates and insects. In vertebrates, the chemosensory receptors belong to the G-protein-coupled family that generates action potentials via intracellular events (Buck & Axel, 1991). Insect odor receptors are however structurally, and genetically unrelated t ...
Brain Anatomy and Histology of Orange Spotted Grouper
... contained more neurons distributed throughout this lobe, which were smaller in size. The epithelium of cerebrum was thinner compared to the olfactory epithelium. The neuronal processes (axons and dendrites) existed in this layer (Figures 6 and 7). The ventral part of the brain included the diencepha ...
... contained more neurons distributed throughout this lobe, which were smaller in size. The epithelium of cerebrum was thinner compared to the olfactory epithelium. The neuronal processes (axons and dendrites) existed in this layer (Figures 6 and 7). The ventral part of the brain included the diencepha ...
Chapter 15
... 1. Structurally olfactory neurons are classified as ____________________ 2. Axons of olfactory neurons pass through holes of the ___________________ to the ____________________ 3. The olfactory tracts ________________________________________ 4. What is an olfactory vesicle? _________________________ ...
... 1. Structurally olfactory neurons are classified as ____________________ 2. Axons of olfactory neurons pass through holes of the ___________________ to the ____________________ 3. The olfactory tracts ________________________________________ 4. What is an olfactory vesicle? _________________________ ...
olfaction and limbic system
... in sulcus olfactorius. Axons of mitral and tufted cells. nucl. olfactorius anterior (modulator): terminates in trigonum olfactorium. ...
... in sulcus olfactorius. Axons of mitral and tufted cells. nucl. olfactorius anterior (modulator): terminates in trigonum olfactorium. ...
The Olfactory Sensory Map in Drosophila
... provided experimental evidence to support this atypical topology, calling into question the general assumption that fly ORs are classic GPCRs. Furthermore, different members of the fly OR family show considerably less homology to each other than most vertebrate ORs, leading to the hypothesis that th ...
... provided experimental evidence to support this atypical topology, calling into question the general assumption that fly ORs are classic GPCRs. Furthermore, different members of the fly OR family show considerably less homology to each other than most vertebrate ORs, leading to the hypothesis that th ...
Izabella Battonyai
... that the PC takes part in olfaction processes, it has important role in olfactory information processing and in odor learning and memory formation as well (Gelperin, 1999; Chase, 2002). Although in early electron microscopic studies Zs.-Nagy and Sakharov (1969) identified synapses in the cell layer ...
... that the PC takes part in olfaction processes, it has important role in olfactory information processing and in odor learning and memory formation as well (Gelperin, 1999; Chase, 2002). Although in early electron microscopic studies Zs.-Nagy and Sakharov (1969) identified synapses in the cell layer ...
Changes in the connections of the main olfactory bulb after mitral
... AON was clearly higher than in the control animals (Table I, Figs. 2D, 3A). Likewise, the density of positive cells was higher in all subdivisions of the PCD ipsilateral AON (Table II, Fig. 3B). In contrast to the observations in the control animals, labeled neurons were seen in all the ipsilateral ...
... AON was clearly higher than in the control animals (Table I, Figs. 2D, 3A). Likewise, the density of positive cells was higher in all subdivisions of the PCD ipsilateral AON (Table II, Fig. 3B). In contrast to the observations in the control animals, labeled neurons were seen in all the ipsilateral ...
The elusive crypt olfactory receptor neuron
... Besides ciliated and microvillous olfactory receptor neurons (ORNs), crypt ORNs are a third type of chemosensory neuron in the olfactory epithelium of actinopterygians (Hansen and Finger, 2000; Hansen and Zeiske, 1998; Hansen and Zielinski, 2005). Recently, the presence of crypt-like ORNs was also d ...
... Besides ciliated and microvillous olfactory receptor neurons (ORNs), crypt ORNs are a third type of chemosensory neuron in the olfactory epithelium of actinopterygians (Hansen and Finger, 2000; Hansen and Zeiske, 1998; Hansen and Zielinski, 2005). Recently, the presence of crypt-like ORNs was also d ...
Anatomy and Physiology of Smell
... interact with mucus overlying the receptor cells Produced by Bowman’s glands and adjacent respiratory mucosa (goblet cells) Partitioning of odorant’s molecules between air phase and mucus phase important in reaching olfactory epithelium Must be soluble in mucus but not too strongly captured to inter ...
... interact with mucus overlying the receptor cells Produced by Bowman’s glands and adjacent respiratory mucosa (goblet cells) Partitioning of odorant’s molecules between air phase and mucus phase important in reaching olfactory epithelium Must be soluble in mucus but not too strongly captured to inter ...
Lecture 14 Olfaction
... responds to only a few specific odorants. Granule cells: Also in the deepest layer of neurons in the olfactory bulb, along with the mitral cells. Granule cells comprise an extensive network of inhibitory neurons, integrate input from all the earlier projections, and are thought to be the basis of sp ...
... responds to only a few specific odorants. Granule cells: Also in the deepest layer of neurons in the olfactory bulb, along with the mitral cells. Granule cells comprise an extensive network of inhibitory neurons, integrate input from all the earlier projections, and are thought to be the basis of sp ...
Cortical representations of olfactory input by trans
... commonly used methods can only trace bulk projections with a coarse resolution. Most methods cannot distinguish axons in passing from those that form synapses, or pinpoint the neuronal types to which connections are made1,2. Trans-synaptic tracers can potentially overcome these limitations2. Here we ...
... commonly used methods can only trace bulk projections with a coarse resolution. Most methods cannot distinguish axons in passing from those that form synapses, or pinpoint the neuronal types to which connections are made1,2. Trans-synaptic tracers can potentially overcome these limitations2. Here we ...
Strasbourg, 15 April 1996 - Neurobiology and Developmental
... Current funding 1. R01 DC007123-06 (PI: Abdallah Hayar) ...
... Current funding 1. R01 DC007123-06 (PI: Abdallah Hayar) ...
What Can an Orbitofrontal Cortex- Endowed Animal
... [LO] areas).4 This latter group of structures (AIv, AIp, VLO, LO) receives direct projections from rodent piriform cortex and responds with short-latency action potentials to electrical stimulation of the olfactory bulb.5 From electrophysiological recordings in rodents, it is evident that these same ...
... [LO] areas).4 This latter group of structures (AIv, AIp, VLO, LO) receives direct projections from rodent piriform cortex and responds with short-latency action potentials to electrical stimulation of the olfactory bulb.5 From electrophysiological recordings in rodents, it is evident that these same ...
Olfactory Coding in the Honeybee Lateral Horn
... volatiles and social pheromones. Recordings reveal odorspecific maps in this brain region as stimulations with the same odorant elicit more similar spatial activity patterns than stimulations with different odorants. Odor-similarity relationships are mostly conserved between antennal lobe and latera ...
... volatiles and social pheromones. Recordings reveal odorspecific maps in this brain region as stimulations with the same odorant elicit more similar spatial activity patterns than stimulations with different odorants. Odor-similarity relationships are mostly conserved between antennal lobe and latera ...
الشريحة 1
... Mechanism of stimulation of taste buds The microvilli on the tip taste believed to provide the receptor surface for taste. The membrane of the taste cell, like that of other sensory receptors cells, is negatively charged on the inside with respect to the outside. So application of a taste substance ...
... Mechanism of stimulation of taste buds The microvilli on the tip taste believed to provide the receptor surface for taste. The membrane of the taste cell, like that of other sensory receptors cells, is negatively charged on the inside with respect to the outside. So application of a taste substance ...
Olfactory bulb
The olfactory bulb (bulbus olfactorius) is a neural structure of the vertebrate forebrain involved in olfaction, or the sense of smell.