Body defenses Flashcards
1
Q
Pathogens
A
infectious agents that cause diseases or illness
- bacteria
- viruses
- protozoans
- fungai
- parasitic worms
- prions (infections proteins)
2
Q
Body defenses
A
- keep things out of body
- chemical defense
- immune defense
chemical and physical barriers
innate- internal cellular and chemical defenses
adaptive immune responses
destroy specific invaders and remember indoors to have quicker response
3
Q
physical and chemical barriers that protect us
A
SKIN - outer layer is dead skin cells
-sweat and oil produced by glands slow bacterial growth
Mucous Membranes - traps microbes in respeitory system
Chemical barriers
- stomach acid
- amalyse
4
Q
Internal cellular and chemical defenses
A
innate, nonspecific, internal
-many white blood cells (seek unknown cells or cells with altered signaling proteins on membrane)
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