(See also Introduction to Periodontal Disease.) Trench mouth is a painful infection of the gums, causing pain, fever, and sometimes fatigue. If the normal bacteria in the mouth overgrow, the gums can become infected. The gums hurt, and people sometimes have extremely bad breath.
The Elements of Art and Design: A continuous mark made on a surface by a moving point; it may be flat (pencil line) or three-dimensional (a rod, groove, ridge, etc.) Line may be explicit - a line painted along the edge of the road - or implied by the edge of a shape or form.
Elements of Art. The elements of art are components or parts of a work of art that can be isolated and defined. They are the building blocks used to create a work of art. The list below describes each element of art. Learn about the principles of design here. Download a student handout containing a list of the elements of art and their definitions.