The British Empire began to take shape during the early 17th century, with the English settlement of North America and the smaller islands of the Caribbean, and the establishment of private companies, most notably the English East India Company, to administer colonies and overseas trade.he British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom.
A heart murmur is a continuous sound that is audible with a common stethoscope, produced when blood passes through particular areas of the heart. The heart has four chambers, two atria (singular = atrium) and two ventricles separated by a skeleton of cartilage that separates each chamber.
Heart murmurs are extra and abnormal heart sounds that may be an indication of a problem in the cardiac cycle. Murmurs sound like clicks, knocks, snaps or whooshing. The four normal heart sounds are a consequence of vibration of the flow of blood and closure of the heart valves. Similarly heart murmurs are a result of vibration caused by turbulent flow or abnormal closure of the heart valves. A murmur is not always an indication of a problem though and most are benign or innocent murmurs.