Vocab For Chapter 18 Flashcards
(29 cards)
Communicable Disease
A disease that can be passed to a person from another person,animal,or object.
Disease
Is any condition that interferes with the proper functioning of the body or mind.
Pathogens
Disease-causing organisms that are so small they can only be seen through a microscope.
Infection
A condition that occurs when pathogens enter the body,multiply,and cause harm.
Viruses
Are the smallest pathogens.
Bacteria
Tiny one-celled organisms.
Fungi
Organisms that are more complex than bacteria but cannot make their own food.
Protozoa
Are one-celled organisms that are more complex than bacteria.
Vector
An organism, such as an insect, that transmits pathogens.
Hygiene
Or cleanliness.
Immune System
Is a combination of body defenses made up of the cells,tissues,and organs that fight off pathogens and disease.
Immunity
Your body’s ability to resist the germs that cause a particular disease.
Inflammation
Is the body’s response in a condition of swelling,pain,heat,and redness.
Lymphatic system
Is a secondary circulatory system that helps the body fight pathogens and maintains its fluid balance.
Lymphocytes
The white blood cells in the lymphatic system.
Antigen
Any substance released by invading pathogens.
Antibodies
Proteins that attach to antigens, keeping them from harming the body.
Vaccine
Is a preparation of dead or weakened pathogens that causes the immune system to produce antibodies.
Contagious period
Length of time that a particular disease can be spread from person to person.
Mononucleosis
Is a viral disease characterized by a sever sore throat and swelling of the lymph glands in the neck and around the throat area.
Hepatitis
A viral disease of the liver characterized by yellowing of the skin and the whites of the eyes.
Tuberculosis
Is a bacterial disease that usually affects the lungs.
Pneumonia
A serious inflammation of the lungs.
Strep Throat
A sore throat caused by streptococcal bacteria.
