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.
Mucus traps bacteria and debris and prevents it from entering your lungs. In some casesâsuch as when you have a cold or allergiesâmucus may flow out of your nose or down your throat instead of staying in your nose. When mucus comes out of your nose, it is called nasal discharge, or more commonly, a runny nose. Nasal discharge can also be called post-nasal drip or rhinorrhea.