Rima-s body is infected with some disease- Her immune system is activated and in response recurits many cells to kill the microbes- She is feeling irritation and swelling- Why-

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Biology

Antiseptics and Disinfectants

Rima's body i...

Question

Rima's body is infected with some disease. Her immune system is activated and in response recruits many cells to kill the microbes. She is feeling irritation and swelling. Why?

Open in App

Solution

Hypersensitivity reaction
Hypersensitivity reactions occur when the normally protective immune system responds abnormally, potentially harming the body. Various autoimmune disorders, as well as allergies, fall under the umbrella of hypersensitivity reactions, the difference being that allergies are immune reactions to exogenous substances (antigens or allergens), whereas autoimmune diseases arise from an abnormal immune response to endogenous substances.

Suggest Corrections

Similar questions

Q. Both hypersensitivity and auto-immune diseases cause some sort of redness or swelling, due to the elevated immune response. But the main difference between them is:

When a microbe first enters our immune system, our immune cells respond to it and then remembers it specifically. So the next time that particular microbe or its close relatives enter the body, the immune system responds with even greater vigor. This methodology of preventing diseases is known as ____________.

When a microbe first enters our immune system, our immune cells respond against it and then remember it specifically. So the next time that particular microbe or its close relatives enter the body, the immune system responds with even greater vigor. This eliminates the infection even more quickly than the first time. This phenomenon stands as the basic principle for an important methodology of preventing diseases. This method is called as __.

Q. Introducing a weakened microbe into the body to stimulate the immune system against diseases is called .

Q. A person is infected with a deadly microorganism. Choose the option that would provide the fastest immune response against the microbe in the affected person.

Join BYJU'S Learning Program