PATHOPHYSIOLOGY D236 Lesson 2: Cellular Response and Adaptation (WGU)

The innate immune system encompasses physica l barriers and chemical and cellular defenses. Phy sical barriers protect the body from invasion. The se include things like the skin and eyelashes. Che mical barriers are defense mechanisms that can destroy harmful agent. Examples include tears, m ucous, and stomach acid. Cellular defenses of the innate immune response are non-specific. These cellular defenses identify pathogens and substan ces that are potentially dangerous and takes step s to neutralize or destroy them. Adaptive immuni ty is an organism’s acquired immunity to a specif ic pathogen. As such, it’s also referred to as acqui red immunity. Adaptive immunity is not immedia te, nor does it always last throughout an organis m’s entire lifespan, although it can. The adaptive immune response is marked by clonal expansion of T and B lymphocytes, releasing many antibody copies to neutralize or destroy their target antige n Incorrect 0/1 Points 2. 2. What is a way that Adaptive Immunity can recruit innate immunity? * Correct answers: The innate immune response to microbes stimul ates adaptive immune responses and influences t he nature of the adaptive responses. Conversely, adaptive immune responses often work by enha ncing the protective mechanisms of innate immu nity, making them more capable of effectively co mbating pathogenic microbes