Immune System Concepts and Functions

Front

What is an allergy?

Back

A strong response to a harmless antigen in the environment.

Front

What is the body's first line of defense against infection?

Back

The skin.

Front

True or false: Sneezes and coughs help your body to get rid of pathogens.

Back

True.

Front

What is an autoimmune disease?

Back

A condition where the immune system attacks its own body cells.

Front

What happens in the immune system of a person with allergies?

Back

The body reacts to foreign materials that are not actually dangerous.

Front

What are antibodies?

Back

Proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.

Front

What role do white blood cells play in the immune system?

Back

They help fight infections and protect the body against foreign invaders.

Front

What is cell-mediated immunity?

Back

A type of immunity that involves the activation of T cells to fight off infected cells.

Front

What is the inflammatory response?

Back

A protective response by the body to injury or infection, characterized by redness, heat, swelling, and pain.

Front

What are lymph nodes?

Back

Small, bean-shaped structures that filter lymph and store white blood cells.