Create textured surfaces that can be painted over with oil or acrylic colors. A flexible, durable, soft body paste with an extra fine-texture; Made in USA. May be applied to a number of porous substrates, such as canvas, wood, cardboard, plaster and concrete.
The respiratory system is made up of organs and tissues that help you breathe. The main parts of this system are the airways, the lungs and linked blood vessels, and the muscles that enable breathing.
The trachea is shaped like a pipe. When a person breathes in, the trachea filters the air down into the bronchi, two air tubes that then carry air directly to the lungs. The main organs of the respiratory system are the lungs. They take oxygen into the body and breathe out carbon dioxide. Oxygen is retrieved from the lungs by red blood cells that then carry the oxygen throughout the body to the cells that need it.