1. Introduction to the Immune System-29-39 AI

What is immunology?

• The study of structure and function of the immune system

• The study of structure and function of the circulatory system

• The study of structure and function of the digestive system

• The study of structure and function of the respiratory system

Where does the term 'immunity' come from?

• Greek term 'immunitas'

• Spanish term 'immunitas'

• Latin term 'immunitas'

• French term 'immunitas'

What is immunity?

• An organism's ability to resist and fight infection

• An organism's ability to resist and fight allergies

• An organism's ability to resist and fight cancer

• An organism's ability to resist and fight autoimmune diseases

What caused the 1918-1919 influenza pandemic?

• Approximately 500 million infections

• Approximately 50 million deaths

• Approximately 500 million infections and 50 million deaths

• Approximately 700 million infections and 7 million deaths

What is the importance of the immune system?

• To defend against allergies

• To defend against pathogens

• To defend against cancer

• To defend against autoimmune diseases

What is an antigen?

• None of the above

• A microbe such as a virus

• A substance that appears to be foreign and harmful

• Both A and B

What happens when the body encounters an antigen for the first time?

• Both A and B

• The information about the germ and how to fight it is stored for future reference

• None of the above

• The microbe is quickly recognized and destroyed

What is an antibody?

• A protein produced by the body's digestive system when it detects antigens

• A protein produced by the body's circulatory system when it detects antigens

• A protein produced by the body's immune system when it detects antigens

• A protein produced by the body's respiratory system when it detects antigens

What do antibodies do when they attach to an antigen?

• Signal other parts of the immune system to attack and destroy the invaders

• Signal other parts of the digestive system to attack and destroy the invaders

• Signal other parts of the circulatory system to attack and destroy the invaders

• Signal other parts of the respiratory system to attack and destroy the invaders

How is immunity to a particular disease developed in the human body?

• None of the above

• Both A and B

• By being vaccinated against the disease

• By constantly fighting the disease