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प्रश्न
How does the human body respond when vaccine is introduced into it?
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उत्तर
In vaccination, a preparation of antigenic proteins of pathogen or inactivated / or weekened pathogen (vaccine) are introduced into the body. The antibodies produced in the body against these antigens would neutralise the pathogenic agents during actual infection. The vaccines also generate memory – B and T-cells that recognise the pathogen quickly on subsequent exposure and overwhelm the invaders with a massive production of antibodies.
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संबंधित प्रश्न
A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
- Write what did the doctor inject into the patient’s body.
- How do you think this injection would protect the patient against the disease?
- Name the disease against which this injection was given and the kind of immunity it provides.
Write the full forms of: BCG
Write the full forms of: TAB
State the functions of mast cells in allergy response.
Enlist the four types of T- lymphocytes, responsible for immune response of our body.
T-lymphocytes and B-lymphocytes are derived from ____________.
Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.
On coming in contact with an antigen, a sensitized T-lymphocyte produces ____________.
Any foreign substance invading body and capable of stimulating an immune response is ____________.
______ provides a physical barrier.
