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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Explain how a failure in the immune system can result in anallergy.

Summary Introduction

To review:

Allergy is caused by the failure of the immune system.

Introduction:

The immune system is called the defense system of the body as it protects the body from foreign antigens. The failure of immune system or any type of disorder leads to abnormally low activity or hyperactivity of the immune system.

Explanation

The exaggerated response of the immune system is called allergy, which occurs toward typically harmless substances present in the surrounding environment. Hay fever, allergic asthma, and food allergies are some of the examples of the hyperactivation of the immune system. The immune system shows an adverse reaction when a person is allergic to any substance, these substances are called allergens. Pollen grains, bee venom, pet dander, chemicals, peanuts, or any simpler substance can be an allergen. The five characteristic signs of allergy are as follows: calor (heat), dolor (pain), rubor (redness), tumor (swelling), and function lasea (loss of function).

The allergens lead to the induction of B-cells to secrete IgE antibodies in excess and result in the Type I hypersensitivity...

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