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BI 122 IMMUNITY Terms in this set (21) The lympatic system splits into what two parts? Non-specific and specific First line of defense non-specific physical barriers, chemical barriers, microbial antagonism second line of defense Fever, inflammation, $7.99   Add to cart

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BI 122 IMMUNITY Terms in this set (21) The lympatic system splits into what two parts? Non-specific and specific First line of defense non-specific physical barriers, chemical barriers, microbial antagonism second line of defense Fever, inflammation,

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BI 122 IMMUNITY Terms in this set (21) The lympatic system splits into what two parts? Non-specific and specific First line of defense non-specific physical barriers, chemical barriers, microbial antagonism second line of defense Fever, inflammation, phagocytosis, interferons, complemen...

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  • August 9, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CGAP - Certified Government Auditing Professional
  • CGAP - Certified Government Auditing Professional
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Denyss
8/9/24, 2:42 PM



BI 122 IMMUNITY
Jeremiah




Terms in this set (21)

The lympatic system splits into what two Non-specific and specific
parts?

First line of defense non-specific physical barriers, chemical barriers, microbial antagonism

second line of defense Fever, inflammation, phagocytosis, interferons, complement

primarly involves B-cells
Antibody-mediated (Humoral) immunity
targets extracellular microbes

cell-mediated immunity involves T-cells, targets intracellular microbes

fucntion the same way regardless of the pathogen or the number of exposures " one
Nonspecific defense
pony" Non specific to anything. Target can be anything

Skin- keratinized cells, sloughing of skin cells,
Mucous membranes- mucus- traps particles
Physical barriers
Cilia- sweep microbes away
hairs- trap microbes

sebum- fatty acids are antimicrobial- kill bacteria
sweat- salt can be antimicrobial
Chemical barriers Gastric acid- few organisms can survive PH 2
lysozyme- host enzymem that cleaves peptidoglycan; present in tears, sweat, mucus,
and saliva

a structure found in the cell wall of eubacteria (gram positive) that are not found in
Peptidolycan
mammalian cells

ability of teh host's normal flora to prevent pathogens from colonzing. Comepte for
Microbial antagonism
space, nutrients, and produce antibacterial factors.

a systemic increase in body temp.
Benefits: slows down growth of pathogens
Fever
speeds up host defense and inflammation
makes host feel "ill" - more likely to rest and recover

A tissue repsonse to injury that helps prevent the spread of infection agents into nearby
Inflammatoin tissues.
begins within minutes; occurs within our hour.

BI 122 IMMUNITY




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