Myocarditis is a disease marked by the inflammation of the heart muscle known as the myocardium â the muscular layer of the heart wall. This muscle is responsible for contracting and relaxing to pump blood in and out of the heart and to the rest of the body. When this muscle becomes inflamed, its ability to pump blood becomes less effective.
Line Symmetry. shape has line symmetry when one half. of it is the mirror image of the other half. Symmetry exists all around us and many people see it as being a thing of beauty. Symmetry is...
Line symmetry. The dotted line through the middle of the letter A is called a mirror line, because if you place a mirror along it, the shape looks exactly the same as the original. Another name for a mirror line is a line of symmetry. This kind of symmetry can also be called ' reflective symmetry '.