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प्रश्न
In the metropolitan cities of India, many children are suffering from allergy/asthma. What are the main causes of this problem. Give some symptoms of allergic reactions.
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उत्तर
Allergy is the exaggerated response of the immune system to certain antigens present in the environment. In metropolitan cities, lifestyle is responsible in lowering of immunity and sensitivity to allergens. More polluted environment increases the chances of allergy in children. Some symptoms of allergic reactions are sneezing, watery eyes, running nose and difficulty in breathing.
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संबंधित प्रश्न
What are allergens?
Name any three allergens.
Write short (1-2 sentences) note on the following:
Allergy
The antigen-binding site in an antibody is found between ______
A person shows strong unusual hypersensitive reactions when exposed to certain substances present in the air. Identify the condition. Name the cells responsible for such reactions. What precaution should be taken to avoid such reactions.
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How many types of histamine receptors are present in the body?
Which histamine receptors are primarily responsible for producing allergic manifestations?
What is the primary function of H2 receptors?
How is the cause of an allergy identified?
Which drug acts by blocking the action of histamine in circulation?
What is anaphylactic shock?
Which situation can trigger an anaphylactic shock reaction similar to injection of a foreign protein?
What happens when histamine is discharged in large quantities during anaphylactic shock?
How has modern lifestyle affected immunity and allergen sensitivity?
