Vocab For Chapter 18 Flashcards
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.