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Перевод: olfactory
[прилагательное] обонятельный; [существительное] `орган обоняния; `органы обоняния
Тезаурус:
- They say that the more soluble a substance is in the lipid matrix of olfactory cells, the more intense the smell we perceive.
- Because the sensory processes ('hairs') are in direct contact with the source of smell, and because the olfactory cells connect directly with the brain, the sense of smell has a powerful and immediate effect.
- Moncrieff identified three: volatility, adsorbability, and customary absence from the olfactory region.
- These olfactory cells, are long and narrow with their length perpendicular to the plane of the nasal cavity and attached to each are five, six even eight olfactory hairs, or "flagella", which are believed to be affected by odorous materials, setting off a chain of events which results in the odour being perceived.
- Critics of aromatherapy have pointed out that the sense of smell becomes quickly exhausted as the olfactory cells in the nose soon become saturated and cease to detect the aroma, so the effects of aromatherapy can only be short-lived.
- The human olfactory system, illustrated in Figure 1, although not as well developed as in many animals, is nevertheless far more sensitive in detecting odours than any known instrumental technique and is capable of discriminating among many thousands of odorous substances, often carrying the memory of a particular odour for life.
- Odour is perceived when air carrying the odorous material travels through the nostrils, along the air passages up into the olfactory cleft where the odour receptors are situated.
- "Any further search for a definition would be axiomatic" suggests Moncrieff, and this does seem to be true, the Third Karolinska Institute Symposium on Environmental Health, defining an odour as "The product of the activation of the sense of smell, an olfactory experience".
- Responses to the aromatic molecule are then sent in the form of impulses via the nerve fibres to the olfactory area in the brain.
- Scientists believe that molecules of an odorous substance meeting the membranes of specialised olfactory cells somehow trigger electrical signals to the brain, and this is the foundation of smell perception.
- Odoriferous substances, such as essential oils, throw off molecules which are detected by the olfactory cells in the upper part of the nose.
- The researchers obtained similar results when they repeated their experiment, this time coating the balance with membranes obtained from human olfactory cells.
- The olfactory area of the brain also connects with the hypothalamus, a very important structure which controls the entire hormonal system by influencing the "master gland" itself - the pituitary.
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LMBomber - программа для запоминания иностранных слов
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