What is an example of a site where pathogens can enter the body?

Pathogens can enter the body through various routes, and broken skin or mucous membranes is a prime example. When the integrity of the skin is compromised, whether through cuts, abrasions, or any form of tear, it creates an opening for bacteria, viruses, and other pathogens to infiltrate the body. Mucous membranes, which line the openings of the body such as the mouth, nose, and eyes, also serve as a gateway for pathogens. This is why maintaining skin integrity and protecting mucous membranes is critical in infection control practices.

In contrast, other options like fingernails and healthy gums do not inherently provide pathways for pathogens. While fingernails can harbor bacteria, they do not allow entry into the body unless there is a breach in the skin underneath. Unbroken skin serves as a natural barrier against infection. Healthy gums are relatively resistant to pathogens when intact, although they can be a concern if there is existing disease or injury. Therefore, broken skin or mucous membranes stand out as clear examples of sites where pathogens can bypass the body’s defenses.