Atelectasis Leakage of air into the pleural cavity (pneumothorax) also leads to compression atelectasis. It occurs when either local or generalized fibrotic changes in the lung or pleura hamper expansion and increase elastic recoil during expiration. Causes include granulomatous disease, necrotising pneumonia and radiation fibrosis. Chronic atelectasis may take one of two forms—middle lobe syndrome or rounded atelectasis. In right middle lobe syndrome, the middle lobe of the right lung contracts, usually because of pressure on the bronchus from enlarged lymph glands and occasionally a tumor. The blocked, contracted lung may develop pneumonia that fails to resolve completely and leads to
Body-to-body communication Culture can influence nonverbal communication in many ways. The same gestures in different countries can have distinct meaning. For example, the American A-OK sign can have an obscene meaning in many nations in Europe, having sexual implications. Facial expression is another mean of nonverbal communication that culture affects. Humans have the ability to express emotions through facial expressions. "Cultural display rules" are learned during childhood and plays a big part on how people from different cultures manage and modify their emotional expressions depending on the social situation that they are in. In an experiment done my Ekman and Friesen; results