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  2. Olfactory receptor neuron - Wikipedia

    en.wikipedia.org/wiki/Olfactory_receptor_neuron

    The ORNs are located in the olfactory epithelium in the nasal cavity. The cell bodies of the ORNs are distributed among all three of the stratified layers of the olfactory epithelium. [4] Many tiny hair-like non-motile cilia protrude from the olfactory receptor cell's dendrites. The dendrites extend to the olfactory epithelial surface and each ...

  3. Olfactory epithelium - Wikipedia

    en.wikipedia.org/wiki/Olfactory_epithelium

    The cells of the olfactory epithelium, including olfactory sensory neurons, begin to differentiate soon after the induction of the olfactory placode. Once the olfactory sensory neurons differentiate, they express odorant receptors, which transduce odorant information from the environment to the central nervous system and aids in the development ...

  4. Olfactory nerve - Wikipedia

    en.wikipedia.org/wiki/Olfactory_nerve

    The specialized olfactory receptor neurons of the olfactory nerve are located in the olfactory mucosa of the upper parts of the nasal cavity.The olfactory nerves consist of a collection of many sensory nerve fibers that extend from the olfactory epithelium to the olfactory bulb, passing through the many openings of the cribriform plate, a sieve-like structure of the ethmoid bone.

  5. Sense of smell - Wikipedia

    en.wikipedia.org/wiki/Sense_of_smell

    Mitral cells, located in the inner layer of the olfactory bulb, form synapses with the axons of the sensory neurons within glomeruli and send the information about the odor to other parts of the olfactory system, where multiple signals may be processed to form a synthesized olfactory perception. A large degree of convergence occurs, with 25,000 ...

  6. Glomerulus (olfaction) - Wikipedia

    en.wikipedia.org/wiki/Glomerulus_(olfaction)

    The olfactory nerve zone is composed of preterminals and terminals of the olfactory nerve and is where the olfactory receptor cells make synapses on their targets. [2] The non-olfactory nerve zone is composed of the dendritic processes of intrinsic neurons and is where dendrodendritic interactions between intrinsic neurons occur. [2]

  7. Mitral cell - Wikipedia

    en.wikipedia.org/wiki/Mitral_cell

    Mitral cell output is not a passive reflection of their input from the olfactory nerve. In mice, each mitral cell sends a single primary dendrite into a glomerulus receiving input from a population of olfactory sensory neurons expressing identical olfactory receptor proteins, yet the odor responsiveness of the 20-40 mitral cells connected to a ...

  8. Sense - Wikipedia

    en.wikipedia.org/wiki/Sense

    The olfactory receptor neurons are located in a small region within the superior nasal cavity. This region is referred to as the olfactory epithelium and contains bipolar sensory neurons . Each olfactory sensory neuron has dendrites that extend from the apical surface of the epithelium into the mucus lining the cavity.

  9. Olfactory receptor - Wikipedia

    en.wikipedia.org/wiki/Olfactory_receptor

    In vertebrates, the olfactory receptors are located in both the cilia and synapses of the olfactory sensory neurons [5] and in the epithelium of the human airway. [6] Sperm cells also express odor receptors, which are thought to be involved in chemotaxis to find the egg cell. [7]