Betekenis van:
respiratory tract
respiratory tract
Zelfstandig naamwoord
- the passages through which air enters and leaves the body
Synoniemen
Hyperoniemen
Hyponiemen
Voorbeeldzinnen
- Respiratory tract
- Respiratory tract irritation
- Criteria for respiratory tract irritation
- ‘Corrosive to the respiratory tract’
- This category only includes narcotic effects and respiratory tract irritation.
- The criteria for classifying substances as Category 3 for respiratory tract irritation are:
- An upper respiratory tract illness with fever AND one of the following two:
- Specific target organ toxicity — single exposure; respiratory tract irritation (section 3.8) 3
- Specific target organ toxicity — Single exposure, Hazard Category 3, Respiratory tract irritation
- AI virus infections in pigs are usually restricted to the respiratory tract and samples must be respiratory tract tissues and, if appropriate, oropharyngeal or nasal swabs, preferably taken from pigs showing signs of that disease.
- Corrosion of the respiratory tract is defined by destruction of the respiratory tract tissue after a single, limited period of exposure analogous to skin corrosion; this includes destruction of the mucosa.
- For example, epidemiological studies show that both soluble and insoluble nickel compounds (at opposite ends of the range of solubility) have local carcinogenic effects in the respiratory tract.
- However, the Committee considered that it should not be used in lip products, oral products and spray due to mucosal and respiratory tract irritation potential.
- subjective human observations could be supported by objective measurements of clear respiratory tract irritation (RTI) (such as electrophysiological responses, biomarkers of inflammation in nasal or bronchoalveolar lavage fluids);
- Inhaled particles between 1 and 4 microns mean mass aerodynamic diameter (MMAD) will deposit in all regions of the rat respiratory tract.