Atelectasis be bibasal in pattern. Chest CT or Bronchoscopy may be necessary if the cause of atelectasis is not clinically apparent. Direct signs of atelectasis include displacement of interlobar fissures and mobile structures within the thorax, overinflation of the unaffected ipsilateral lobe or contralateral lung, and opacification of the collapsed lobe. Atelectasis may be an acute or chronic condition. In acute atelectasis, the lung has recently collapsed and is primarily notable only for airlessness. In chronic atelectasis, the affected area is often characterized by a complex mixture of airlessness, infection, widening of the bronchi (bronchiectasis), destruction, and scarring (fibrosis). The atmosphere
Body part as an object - the motor and visual cortices - involved in using or viewing objects and events, and thus facilitates the production of a representational gesture. Therefore, when objects are thought of using mental or visual imagery, more gestures should be produced. On the other hand, if an object is thought of only through its verbal representation, there should be fewer gestures present. Tool-use is the manipulation, or use, of an object using the hands. It is one of the many skills that separate humans from animals. There are two factors used to explain tool-use in humans. First of all, part of