What Is The Immune System? Defining Immune System
What is the immune system?
The immune system is a complex network of cells, tissues, and organs that work together to protect the body from harmful invaders, such as viruses, bacteria, and parasites.
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What is the immune system?
The immune system is the body's defense against disease-causing organisms and substances.
How does the immune system work?
The immune system works by recognizing and attacking harmful substances in the body, such as bacteria and viruses.
What are the different types of immune cells?
The different types of immune cells include white blood cells, T cells, B cells, and natural killer cells.
What is an allergic reaction?
An allergic reaction is an overreaction of the immune system to a harmless substance, such as pollen, mold, dust mites, or pet dander.
How can allergies be treated?
Allergies can be treated with antihistamines, corticosteroids, and immunotherapy, which helps desensitize the immune system to allergens.
What is the difference between IgE and IgG antibodies in allergies?
IgE antibodies are responsible for immediate allergic reactions, while IgG antibodies are involved in delayed allergic reactions.
How do allergies develop in the immune system?
Allergies develop when the immune system mistakes harmless substances, such as pollen or food, for harmful invaders.
What is anaphylaxis and how does it relate to allergies?
Anaphylaxis is a severe, life-threatening allergic reaction that can cause difficulty breathing, a drop in blood pressure, and shock.
What is the role of mast cells in allergic reactions?
Mast cells release histamine and other chemicals in response to allergens, triggering allergic symptoms like itching, swelling, and congestion.
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