C18 Flashcards
Disease that can be passed to a person from another person
Communicable disease
Organisms that are so small they can only be seen through a microscope
Pathogens
Pathogens enter the body
Infection
The smallest pathogens
Viruses
Tiny one called organism
Bacteria
Are more complex and can’t make their own food
Fungi
More complex than bacteria
Protozoa
Transmits pathogens
Vector
Cleanliness
Hygiene
A combination of a body’s defenses made up of the cells
Immune system
Body’s ability to resist germs
Immunity
Body’s response to injury or disease
Inflammation
Secondary circulatory system that helps the body fight pathogens
Lymphatic system
The white blood cells in the lymphatic system
Lymphocytes
Substance released by invading pathogens
Antigens