chapter 17 Flashcards
(12 cards)
What are mechanical barriers?
Physical barriers that block pathogens’ entry
What are chemical barriers?
Substance that holds back or destroys pathogens
like stomach acid
What are antimicrobial peptides?
Short proteins that disrupt microbial membranes and inhibit pathogen growth
Defensins target, which process or structure of a microbial cell?
The microbial cell membrane, leading to membrane disruption
Where are acute-phase proteins produced?
Liver, in response to inflammation
What are the results of complement activation?
Opsomization, inflammation, and direct lysis of pathogens via the membrane attack complex (MAC)
What is a cytokine?
A small signaling protein released by cells that affects the behavior of other cells, especially in immune responses
Best term to describe the process that occurs when an immune cell releases cytokines to nearby cells to trigger a response?
Paracrine signaling
Which cytokine recruits leukocytes to sites of infection
Chemokines
