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Phantosmia (phantom smell), also called an olfactory hallucination or a phantom odor, [ 1 ] is smelling an odor that is not actually there. This is intrinsically suspicious as the formal evaluation and detection of relatively low levels of odour particles is itself a very tricky task in air epistemology. [further explanation needed] It can ...
Hyperosmia is an increased olfactory acuity (heightened sense of smell), usually caused by a lower threshold for odor. [ 1 ] This perceptual disorder arises when there is an abnormally increased signal at any point between the olfactory receptors and the olfactory cortex. The causes of hyperosmia may be genetic, hormonal, environmental or the ...
Olfactory fatigue, also known as odor fatigue, odor habituation, olfactory adaptation, or 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 ...
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.
The human nose is the first organ of the respiratory system. It is also the principal organ in the olfactory system. The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum, which separates the nostrils and divides the nasal cavity into two. The nose has an important function in breathing.
Anosmia, also known as smell blindness, is the loss of the ability to detect one or more smells. [ 1 ][ 2 ] Anosmia may be temporary or permanent. [ 3 ] It differs from hyposmia, which is a decreased sensitivity to some or all smells. [ 2 ] Anosmia can be categorized into acquired anosmia and congenital anosmia.
The human body has two types of sweat glands.
Mouth breathing, medically known as chronic oral ventilation, is long-term breathing through the mouth. It often is caused by an obstruction to breathing through the nose, the innate breathing organ in the human body. [ 3 ][ 4 ][ 5 ] However, by the early 20th century, the term "mouth-breather" had developed a pejorative slang meaning connoting ...