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29 Cards in this Set
- Front
- Back
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disease |
a condition that interferes with the proper functioning of the body or mind |
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communicable disease |
a disease that can be passed to a person from another person, animal, or object |
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pathogens |
disease-causing organisms that are so small that they can only be seen through a microscope |
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infection |
a condition that occurs when pathogens enter the body, multiply, and cause harm |
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viruses |
the smallest pathogens (cold, flu) |
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bacteria |
tiny one-celled organisms (strep throat, pneumonia) |
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fungi |
organisms that are more complex than bacteria but cannot make their own food (ringworm, athlete's foot) |
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protozoa |
one-celled organisms that are more complex than bacteria (malaria) |
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vector |
an organism, such as an insect, that transmits pathogens |
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hygiene |
keeping your body clean |
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immune system |
a combination of body defenses made up of the cells, tissues, and organs that fight off pathogens and disease |
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immunity |
your body's ability to resist the germs that cause a particular disease |
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inflammation |
the body's response to injury or disease, resulting in a condition of swelling, pain, heat, and redness |
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lymphatic system |
a secondary circulatory system that helps the body fight pathogens and maintains its fluid balance |
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lymphocytes |
the white blood cells in the lymphatic system |
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antigen |
any substance released by invading pathogens |
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antibodies |
proteins that attach to antigens, keeping them from harming the body |
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vaccine |
a preparation of dead or weakened pathogens that causes the immune system to produce antibodies |
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contagious peiod |
the length of time that a particular disease can be spread from person to person |
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mononucleosis |
(mono) a viral disease characterized by a severe sore throat and swelling of the lymph glands in the neck and around the throat area |
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hepatitis |
a viral disease of the liver characterized by yellowing of the skin and the whites of the eyes |
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tuberculosis |
a bacterial disease that usually affects the lungs |
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pneumonia |
a serious inflammation of the lungs |
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strep throat |
a sore throat caused by streptococcal bacteria |
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sexually transmitted diseases (STDs) |
infections that are spread from person to person through sexual contact |
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HIV (human immunodeficiency virus) |
the virus that causes AIDS |
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AIDS (acquired immunodeficiency syndrome) |
a deadly disease that interferes with the body's natural ability to fight infection |
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opportunistic infection |
an infection that rarely occurs in a healthy person |
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carrier |
a person who appears healthy but is infected with a virus and can pass it to others |
