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75 Cards in this Set

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infectious diseases
AKA communicable diseases; caused by organisms that enter, live in, and multiply within the human body
microorganisms
when organisms are so small that they can be seen only though a microscope
pathogens
organisms that cause disease
bacteria
simple, single-celled microorganisms that can live almost anywhere
toxins
poisons that are given off by some bacteria that injure cells
tetanus
a toxin produced by a type of bacteria found in soil and on objects
viruses
the smallest pathogens
fungi
small, simple organisms related to molds
protozoans
single-celled organisms that are hundreds of times larger and have a more complex structure than bacteria
botulism
a very serious and often deadly kind of food poisoning
mucous membranes
protective linings that are found in openings into your body, such as your mouth, eyes, and nose
mucus
a sticky liquid that covers the surface of the membranes
cilia
tiny hair-like structures that line your air passages and beat rhythmically, moving the mucus upward toward your mouth
inflammation
your body’s response to all kinds of injury; it fights infection and promotes healing
phagocytes
white blood cells that ‘eat up’ foreign cells
Pus
a thick, white liquid that is made by phagocytes
Immune System
your body’s last and most sophisticated line of defense against pathogens that produces a set of weapons for each kind of pathogen found in the body
Immunity
your body’s ability to destroy pathogens that it has previously encountered before the pathogens are able to cause disease
Lymphatic System
a network of vessels that collects fluid from the tissues of your body and returns it to the bloodstream
Lymph
the fluid that flows through the lymphatic system
Lymphocytes
the cells that carry out most of the immune system’s functions
B Cells
produce substances called antibodies
Antibodies
proteins that attach to the surface of pathogens or to the toxins produced by pathogens
T Cells
live in the blood and lymphatic system of your body
Interferon
one of the regulatory substances that T cells produce that stimulates phagocytes and other cells, including B cells, to fight off infection
Active Immunity
immunity that your own immune system creates
Immunizations
vaccinations; injections that cause you to become immune to a disease
Vaccine
the substance that is injected that contains small amounts of dead or modified pathogens or their toxins and causes your immune system to make antibodies to the pathogen
Passive Immunity
immunity that is acquired by receiving antibodies from another immune system
Influenza
a viral infection of the upper respiratory system
Incubation Stage
the time between entry of the virus and the time when you begin to feel ill
Symptoms
feelings caused by a disease
Prodromal Stage
when the first symptoms occur in which you may be contagious
Fever
a body temperature above 98.6 degrees F
Acute Stage
when your symptoms are most severe
Recovery Stage
when you begin to feel better
Convalescence
period between the end of infection and feeling really well
Relapse
return of disease during or soon after convalescence
Antibiotics
drugs that inhibit or kill bacteria and are prescribed to cure bacterial infections
Pneumonia
a serious infection of the lungs
Rubella
German measles; caused by a virus and is characterized by mild fever, rash, coughing, sneezing, sore throat, swollen glands and chest congestion
Hepatitis
inflammation of the liver
Jaundice
yellowing of the skin
Tuberculosis
a highly contagious bacterial infection that most often affects the lungs
Infectious Mononucleosis
AKA ‘mono’; a viral infection that causes the lymph nodes, tonsils, and spleen to become swollen and tender
Incubation Stage
the time between entry of the virus and the time when you begin to feel ill
Symptoms
feelings caused by a disease
Prodromal Stage
when the first symptoms occur in which you may be contagious
Fever
a body temperature above 98.6 degrees F
Acute Stage
when your symptoms are most severe
Recovery Stage
when you begin to feel better
Convalescence
period between the end of infection and feeling really well
Relapse
return of disease during or soon after convalescence
Antibiotics
drugs that inhibit or kill bacteria and are prescribed to cure bacterial infections
Pneumonia
a serious infection of the lungs
Rubella
German measles; caused by a virus and is characterized by mild fever, rash, coughing, sneezing, sore throat, swollen glands and chest congestion
Hepatitis
inflammation of the liver
Jaundice
yellowing of the skin
Tuberculosis
a highly contagious bacterial infection that most often affects the lungs
Infectious Mononucleosis
AKA ‘mono’; a viral infection that causes the lymph nodes, tonsils, and spleen to become swollen and tender
Incubation Stage
the time between entry of the virus and the time when you begin to feel ill
Symptoms
feelings caused by a disease
Prodromal Stage
when the first symptoms occur in which you may be contagious
Fever
a body temperature above 98.6 degrees F
Acute Stage
when your symptoms are most severe
Recovery Stage
when you begin to feel better
Convalescence
period between the end of infection and feeling really well
Relapse
return of disease during or soon after convalescence
Antibiotics
drugs that inhibit or kill bacteria and are prescribed to cure bacterial infections
Pneumonia
a serious infection of the lungs
Rubella
German measles; caused by a virus and is characterized by mild fever, rash, coughing, sneezing, sore throat, swollen glands and chest congestion
Hepatitis
inflammation of the liver
Jaundice
yellowing of the skin
Tuberculosis
a highly contagious bacterial infection that most often affects the lungs
Infectious Mononucleosis
AKA ‘mono’; a viral infection that causes the lymph nodes, tonsils, and spleen to become swollen and tender