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  2. Olfactory receptor neuron - Wikipedia

    en.wikipedia.org/wiki/Olfactory_receptor_neuron

    The olfactory receptor neuron has a fast working negative feedback response upon depolarization. When the neuron is depolarizing, the CNG ion channel is open allowing sodium and calcium to rush into the cell. The influx of calcium begins a cascade of events within the cell. Calcium first binds to calmodulin to form CaM.

  3. Olfactory memory - Wikipedia

    en.wikipedia.org/wiki/Olfactory_memory

    Olfactory memory refers to the recollection of odors. Studies have found various characteristics of common memories of odor memory including persistence and high resistance to interference. Explicit memory is typically the form focused on in the studies of olfactory memory, though implicit forms of memory certainly supply distinct contributions ...

  4. Olfactory receptor - Wikipedia

    en.wikipedia.org/wiki/Olfactory_receptor

    PDBsum. structure summary. Olfactory receptors (ORs), also known as odorant receptors, are chemoreceptors expressed in the cell membranes of olfactory receptor neurons and are responsible for the detection of odorants (for example, compounds that have an odor) which give rise to the sense of smell. Activated olfactory receptors trigger nerve ...

  5. Olfactory system - Wikipedia

    en.wikipedia.org/wiki/Olfactory_system

    Anatomical terminology. [ edit on Wikidata] The olfactory system, or sense of smell, is the sensory system used for olfaction (i.e., smelling). Olfaction is one of the special senses directly associated with specific organs. Most mammals and reptiles have a main olfactory system and an accessory olfactory system.

  6. Olfactory nerve - Wikipedia

    en.wikipedia.org/wiki/Olfactory_nerve

    Olfactory nerve. The olfactory nerve, also known as the first cranial nerve, cranial nerve I, or simply CN I, is a cranial nerve that contains sensory nerve fibers relating to the sense of smell. The afferent nerve fibers of the olfactory receptor neurons transmit nerve impulses about odors to the central nervous system (olfaction).

  7. Olfactory fatigue - Wikipedia

    en.wikipedia.org/wiki/Olfactory_fatigue

    Olfactory fatigue, also known as odor fatigue, olfactory adaptation, and noseblindness, is the temporary, normal inability to distinguish a particular odor after a prolonged exposure to that airborne compound. [1] For example, when entering a restaurant initially the odor of food is often perceived as being very strong, but after time the ...

  8. Olfactory bulb - Wikipedia

    en.wikipedia.org/wiki/Olfactory_bulb

    The olfactory bulb transmits smell information from the nose to the brain, and is thus necessary for a proper sense of smell. As a neural circuit, the glomerular layer receives direct input from afferent nerves, made up of the axons from approximately ten million olfactory receptor neurons in the olfactory mucosa, a region of the nasal cavity.

  9. Sensory nervous system - Wikipedia

    en.wikipedia.org/wiki/Sensory_nervous_system

    The sensory nervous system is a part of the nervous system responsible for processing sensory information. A sensory system consists of sensory neurons (including the sensory receptor cells), neural pathways, and parts of the brain involved in sensory perception and interoception. Commonly recognized sensory systems are those for vision ...