17.1/16.4 Flashcards
What is it called when it’s new to the population or has shown an increase in prevalence in the last 20 years?
Emerging infectious disease
What is it called when there is an increase of a disease after period of decline?
Re-emerging infectious disease
What are the 3 categories of innate immunity?
Physical innate defense, chemical innate defense, and cellular innate defense
What are the 3 structures of physical innate defense?
tight junctions, desmosomes, gap junctions
How is shedding of epidermis a form of physical innate defense?
Helps shed microbes
In the physical innate defense, _____ resists microbial enzymes and ____can inhibit growth.
keratin; salt
With what physical innate defense structure do mucous membranes use for protection?
tight junctions
T/F Mucus may also contain antimicrobial peptides
T
What is endothelia?
tightly packed epithelial cells lining blood vessels, lymphatic vessels, urogenital track and others
What are ciliated epithelial cells of the upper respiratory system that move debris-laden mucus out of the lungs?
Mucociliary escalator
What does the endothelia of blood-brain barrier do?
Protects CNS
How does microbiome competition inhibit the growth of potential pathogens?
beneficial microbes compete and take up physical space/nutrients