What are secretions that help remove pathogens from the body?

The secretions that help remove pathogens from the body primarily function to trap and flush out harmful microorganisms and foreign particles. Sweat and tears play a vital role in this process.

Sweat contains antimicrobial proteins and provides a salty environment that can inhibit the growth of certain pathogens on the skin’s surface. Tears help protect the eyes by washing away irritants and pathogens, containing enzymes like lysozyme that break down bacterial cell walls, contributing to the body's defense mechanism against infection.

While saliva and mucus also play important roles in trapping pathogens in the mouth and respiratory tract, they are not part of the correct answer in this context. Saliva provides lubrication and contains antibodies, while mucus traps particles to prevent them from entering the lungs. Urine is primarily involved in waste elimination rather than pathogen removal, and bile aids in digestion rather than directly in immune responses. Blood and lymph are crucial for transporting immune cells and responding to infections, but they do not secrete directly to remove pathogens from external surfaces like sweat and tears do.