TOPIC 19 DAY 1 NONSPECIFIC IMMUNE DEFENSES

Front

What is inflammation in the context of the immune system?

Back

Inflammation is a biological response of the immune system triggered by pathogens, damaged cells, or toxic compounds, characterized by redness, heat, swelling, and pain.

Front

What is the first step in the inflammatory response?

Back

Histamine is released by injured mast cells.

Front

What role does mucus play in the immune system?

Back

Mucus traps foreign particles from entering the body.

Front

What is the nonspecific immune response?

Back

The nonspecific immune response responds in the same way to all germs and foreign substances.

Front

What is the inflammatory response?

Back

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

Front

How do breathing passages help keep pathogens out of the body?

Back

Mucus and cilia trap pathogens.

Front

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

Back

Skin.

Front

What is the function of the mucous membrane?

Back

The mucous membrane lines organs and cavities, producing mucus that traps pathogens and foreign particles.

Front

What are macrophages?

Back

Macrophages are immune cells that consume pathogens and dead cells.

Front

What is the role of histamine in the immune response?

Back

Histamine is released during inflammation, causing blood vessels to dilate and increasing blood flow to the affected area.