A river begins at a source (or more often several sources), follows a path called a course, and ends at a mouth or mouths. The water in a river is usually confined to a channel, made up of a stream bed between banks. In larger rivers there is often also a wider floodplain shaped by flood-waters over-topping the channel.
A 'computerized tomography' (CT) (or 'computerized axial tomography' (CAT) scan) uses a computer that takes data from several X-ray images of structures inside a human's or animal's body and converts them into pictures on a monitor.
Overview. A CT scan is a type of X-ray that can show cross-sectional images of a specific area of the body. The machine circles the body and sends the images to a computer, where they are viewed by a technician.Each picture is viewed as a cross-section of the body to provide doctors with alternate views of your body.verview. A CT scan is a type of X-ray that can show cross-sectional images of a specific area of the body. The machine circles the body and sends the images to a computer, where they are viewed by a technician.