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16 terms

Science Section A 2.3

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infectious disease
caused by harmful organisms or viruses
non-infectious disease
occur when a body system does not function properly
immune system
your bodies 3rd line of defense/ fights harmful agents of diesease
disease affects
the structure & function of cells
common causes of an infectious disease
bacteria & some types of fungi
what is protzoa carried by mosquitos called?
malaria
cholera
transmitted by water that has been contaminated by human or animal waste products
viruses
common causes of infectious disease
some examples of viral diseases
colds, the flu, and the chicken poxs
causes many non-infectious diseases
poor nutrition
lyme disease
ticks carry the spirochete bachteria that cause this diesease
arteriosclerosis
this artery is almost intirely blocked by plaque, a mixture of fatty substances that sticks to the artery wall. Eating a healthy diet reduces the incidence of plaque.
cancer
causes cells to divide rapidly and incorrectly.
your bodies 3 lines of defense
1) physical &chemical barriers- skin,tears,saliva,earwax, mucas 2)processes that kick in should harmfulagents enter- like getting cut/inflammation/phagocytes 3) immune system
phagocytes
cells that surround and consume harmful disease agents that invade ur body/ one type of white blood cell
antibodies
certain types of white blood cells that produce special proteins that fight invaders