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  2. Sense of smell - Wikipedia

    en.wikipedia.org/wiki/Sense_of_smell

    The sense of smell, or olfaction, [nb 1] is the special sense through which smells (or odors) are perceived. [2] The sense of smell has many functions, including detecting desirable foods, hazards, and pheromones , and plays a role in taste .

  3. Olfactory system - Wikipedia

    en.wikipedia.org/wiki/Olfactory_system

    The olfactory system, is the sensory system used for the sense of smell (olfaction). 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. The main olfactory system detects airborne substances, while the accessory system senses ...

  4. Evolution of olfaction - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_olfaction

    One hallmark feature of the Order Primates is the diminished emphasis on olfaction. [23] Smell is often viewed as a mitigated special sense during the emergence of higher neural function, and correspondingly, olfaction has been increasingly reduced throughout the course of primate evolution.

  5. Human sense of smell is faster than previously thought, new ...

    www.aol.com/news/human-sense-smell-faster...

    In a single sniff, the human sense of smell can distinguish odors within a fraction of a second, working at a level of sensitivity that is “on par” with how our brains perceive color ...

  6. Olfactic communication - Wikipedia

    en.wikipedia.org/wiki/Olfactic_communication

    Olfactic communication is a channel of nonverbal communication referring to the various ways people and animals communicate and engage in social interaction through their sense of smell. Our human olfactory sense is one of the most phylogenetically primitive [1] and emotionally intimate [2] of the five senses; the sensation of smell is thought ...

  7. Olfactory nerve - Wikipedia

    en.wikipedia.org/wiki/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 ).

  8. How losing your sense of smell affects breathing patterns and ...

    www.aol.com/study-gives-insight-loss-smell...

    A new analysis of breathing data from 52 volunteers over a 24-hour period revealed that people with a normal sense of smell had little spikes, or “sniffs,” during each breath that were not ...

  9. Olfactory memory - Wikipedia

    en.wikipedia.org/wiki/Olfactory_memory

    Newborn infants respond positively to the smell of their own amniotic fluid, which may serve as evidence for intrauterine olfactory learning. [22] Mammals' sense of smell becomes mature at an early stage of development. [22] Fetal olfactory memory has been demonstrated in rats, for example.