The exaggerated response of the ______ system to certain antigens present in the environment is called allergy.
immune
The correct answer is immune.
When the person is exposed to the allergen again, the allergen binds to the IgE antibodies on the mast cells, causing the mast cells to release chemicals, including histamine. Histamine and other chemicals cause the familiar symptoms of allergy, such as inflammation, itching, mucus production, and muscle contractions in the airways. Allergies can range from mild (like seasonal hay fever) to severe and life-threatening (like anaphylaxis, a severe systemic reaction).
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Important Questions from Human body
A resting person, usually has a pulse rate between ______ and ______ beats per minute
In humans, neck and head are joined by which joint ?
The human skeleton is composed of around ______ bones at birth.
Identify the disease that is not caused by virus.
Which one of the changes observed during adolescence is not associated with boys?
