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The Lady and the Unicorn, a Flemish tapestry depicting the sense of smell, 1484–1500. Musée national du Moyen Âge, Paris.. Early scientific study of the sense of smell includes the extensive doctoral dissertation of Eleanor Gamble, published in 1898, which compared olfactory to other stimulus modalities, and implied that smell had a lower intensity discrimination.
Your nose may be more powerful than you think. 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 ...
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 .
Losing or not having your sense of smell may be linked to changes in breathing that could lead to depression, social isolation or other mental health problems, a new study suggests.
It's been quick to make the media rounds - our favorite headline may be, "your nose knows death is imminent." Losing your smell isn't the CAUSE of death, it's more like an early warning sign.
The sense of smell is called olfaction. All materials constantly shed molecules, which float into the nose or are sucked in through breathing. Inside the nasal chambers is the neuroepithelium, a lining deep within the nostrils that contains the receptors responsible for detecting molecules that are small enough to smell. These receptor neurons ...
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.
In a typical mammalian body such as the human body, the external body orifices are: The nostrils, for breathing and the associated sense of smell; The mouth, for eating, drinking, breathing, and vocalizations such as speech; The ear canals, for the sense of hearing; The nasolacrimal ducts, to carry tears from the lacrimal sac into the nasal cavity