The first line of defense (or skin defense system) is a barrier that stops INFECTIOUS DISEASES CALLES PATHOGENS from trying to enter the body
skin and mucus are the first ORGAN defenders. Your skin, nose, mouth and eyes are easy entry points for pathogens.
Those that are not killed immediately are trapped in mucus and swallowed.
the skin acts as a barrier between invaders (pathogens) and your body. Skin forms a waterproof mechanical barrier. Microorganisms that live all over your skin can’t get through your skin unless it’s broken.