The Body's Five Major Barriers to Block Pathogens
{"Image DocumentName": "The Body\u2019s Five Major Barriers to Block Pathogens", "Image ImageDescription": "Keeping Pathogens Out. The Body\u2019s Five Major Barriers to Block Pathogens. Tears. Saliva. Skin. Pathogens are everywhere, but your body protects you. Your body can block, trap, or break down most pathogens before they make you sick. Tears: Tears cover and protect the eye from dust and pathogens. Tears carry foreign material away from the eye. Saliva: Saliva contains chemicals that kill pathogens. Skin: Skin provides a protective surface that keeps pathogens from entering the blood. Pathogens can get through this barrier if you have a cut or a scrape. Mucous membranes: Mucous membranes are the soft skin that line the nose, mouth, eyes, and other body openings. They are coated in a fluid called mucus. Mucus traps pathogens. Stomach acid: Stomach acid kills many of the pathogens that make it past the saliva and mucous membranes of your mouth. Mucous Membranes. Stomach Acid.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}