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 is produced in the nose and sinuses and it's moved in predefined pathways from your sinuses through to your nose and then from your nose to your throat. Then it's swallowed, he says. So there's a continuous carpet of mucus that's produced. It keeps your nose and throat moist.