L1 Flashcards
immunology
study of body’s defence system
why are we able to live longer now?
better hygiene
vaccine development
anti-infectious drugs - antibiotics
types of pathogen
bacteria
viruses
fungi
parasites (protozoa, worms)
stages of infection
entry into body
replication and spread
disease
exit from body (infecting others)
_____ immunity is the first line of defence against infection
innate
3 types of barriers to infection
mechanical
chemical
microbiological
3 innate immune cells
phagocytes
granulocytes
lymphoids
granulocytes can go and become ______ but there are ____ ____ as well
macrophages
resident
macrophages
macrophage
eat things
make anti-bacterial + anti-microbial things
monocyte
in blood
can enter the tissue and differentiate into macrophage
neutrophil
70% of phagocytes
short-lived
deal with something quickly
phagocytes (types)
tissue macrophages
monocytes in blood
neutrophils polymorphonuclear (PMN) leukocytes in blood