Diseases and the Immune System

Front

What are the smallest and simplest pathogens?

Back

virus

Front

What are organisms that are so small that they can only be seen through a microscope?

Back

germs

Front

What is a combination of body defenses made up of cells, tissues, and organs that fight pathogens in the body?

Back

immune system

Front

What is the secondary circulatory system that helps the body fight pathogens and maintain its fluid balance?

Back

lymphatic system

Front

What is a preparation of dead or weakened pathogens that is introduced into the body to cause an immune response?

Back

vaccine

Front

What are the substances that send the immune system into action?

Back

antigens

Front

What is any condition that interferes with the normal or proper functioning of the body or mind?

Back

disease

Front

What is a disease that can be spread to a person from another person, an animal, or an object?

Back

communicable disease

Front

What are simple one-celled organisms?

Back

bacteria

Front

What are specific proteins that attach to antigens, keeping them from harming the body?

Back

antibodies