Typically, engineered wood products are made from the same hardwoods and softwoods used to manufacture lumber. Sawmill scraps and other wood waste can be used for engineered wood composed of wood particles or fibers, but whole logs are usually used for veneers, such as plywood, MDF or particle board.
Mucus is a slippery secretion of the lining of various membranes in the body (mucous membranes). It is a viscous colloid containing antiseptic enzymes (such as lysozyme) and immunoglobulins. Mucus is produced by goblet cells in the mucous membranes that cover the surfaces of the membranes.
The mucus is made by the nose and continually travels through the sinuses, slipping down the back of the throat to the stomach. Its purpose is to keep the nasal passages wet-and add moisture to the dry air we breathe in. Made from water, proteins, antibodies and dissolved salts, it should be clear in a healthy person.hat your SNOT says about your health: Yellow mucus means you have a cold while black gunge is a sign of a fungal infection. 1  Most people produce about 1.7 litres of mucus a day-enough to fill a kettle. 2  As it is made from water, proteins, antibodies and salts, it should be clear.