Canada's culture draws from its broad range of constituent nationalities, and policies that promote a just society are constitutionally protected.he United States is home to a number of perceptions about Canadian culture, due to the countries' partially shared heritage and the relatively large number of cultural features common to both the US and Canada. For example, the average Canadian may be perceived as more reserved than his or her American counterpart.
In soft tissues, crepitus can be produced when gas is introduced into an area where it is normally not present. The term can also be used when describing the sounds produced by lung conditions such as interstitial lung diseaseâthese are also referred to as rales.
Pleurisy is a respiratory disease characterized by inflammation of the outer lining of the lungs. This inflammation, along with fluid buildup, creates friction (commonly referred to as a pleural rub, when heard using a stethoscope) during breathing, resulting in sharp chest pain, usually on inspiration. Certain lung disorders, such as pneumonia, asbestosis and tuberculosis, are common causes of pleurisy. Chest trauma and different types of lung cancers can also cause pleurisy. Systemic lupus erythematosus (disorder in which the body attacks its own healthy cells and tissues) is a potential cause of pleurisy. Sometimes the cause may not be identified.