Question

Which areas of the body are protected from infection by fluids?

1) Eye
2) GI system
3) Urethra
4) Mouth
5) Vagina

Answer 1

Fluids in the eye, GI system, urethra, mouth, and vagina protect against infection by trapping, neutralizing, or flushing out pathogens, contributing to the body's innate immune defenses.

Step-by-step explanation:

Areas of the body that are protected from infection by fluids include several mucosal surfaces and body openings. Some of the key areas where fluids provide a barrier to infection are:

• The eye, where tears contain enzymes that break down bacterial cell walls, protecting against infection.
• The GI system, where the acidic environment of the stomach inhibits the growth of many pathogens.
• The urethra, which uses urine flow to flush out pathogens, reducing the risk of infection.
• The mouth, protected by saliva that contains antimicrobial enzymes.
• The vagina, which has an acidic pH and mucus that trap and neutralize pathogens.

Overall, these bodily fluids play a critical role in the innate immune system by providing physical and chemical barriers that protect against pathogens.