Examples of physical barriers against pathogens include
A) sebaceous glands.
B) mucus.
C) epithelia.
D) epidermal layers.
E) all of the above

Question

Quizplus · Accepted Answer

All of the options listed are physical barriers that serve as the first line of defense against pathogens. Sebaceous glands secrete sebum, which helps create a protective barrier on the skin. Mucus traps pathogens and prevents them from entering the body. Epithelia and epidermal layers act as physical barriers to prevent the entry of pathogens.

Examples of Physical Barriers Against Pathogens Include