MODEL RELEASED: Teenage boy using an inhaler to control an attack of asthma,a disorder of the bronchial tubes which leads to breathing problems. A number of stimuli may combine to precipitate an attack including; allergens,exertion,emotions and infections. The sufferer experiences paroxysmal attacks of bronchospasm (a narrowing of the bronchi by muscular contraction) which result in wheezing and general breathing difficulties. The inhaler effects a rapid relief from these symptoms. It's aerosol mechanism administers a measured dose of a bronchodilator,an agent that widens the air passages | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Priest, Chris / Clarke, Mark |
Taille de l’image : | 4398 px × 4615 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |