Elongated and tortuous aorta on Chest X ray sounds like thoracic part of the aorta. This can be elongated & become tortuous from a number of causes. In an adult of his age it is likely to be due to atherosclerosis & high blood pressure. CAD is coronary artery disease. It is a type of heart disease.
MAIN IDEA â¢ Chief point an author is making about a topic. It sums up the authorâs primary message. Topic Sentence; Statement of the main idea. It is the statement under which all other material in the paragraph â examples, reasons, facts, details and other evidence â can fit. EXAMPLE: (refer to above example) Notice that all information is after the first sentence is about ways to reduce noise pollution.
Central idea is the main theme or idea that the story revolves around. its the focus and a lesson that the author is trying to convey or a topic. In literature, the central idea is a another way of saying theme.. A theme is the focus, the lesson or the moral learned in a given piece of literature. If you want to compare it to Disney Land, the central idea or theme is that of cartoon characters...however, the central theme of a story is like that of The Three Little Pigs; never build your house out of straw, be sure it has a solid foundation.